Table of Contents

 
 
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
__________________________________________________________________________________________________________________
Form 10-Q
(Mark One)
xQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended March 31,September 30, 2018
OR
oTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
  
For the transition period from          to
Commission File Number 1-13232 (Apartment Investment and Management Company)
Commission File Number 0-24497 (AIMCO Properties, L.P.)
 
Apartment Investment and Management Company
AIMCO Properties, L.P.
(Exact name of registrant as specified in its charter)
 
Maryland (Apartment Investment and Management Company) 84-1259577 
Delaware (AIMCO Properties, L.P.) 84-1275621 
(State or other jurisdiction of
incorporation or organization)
 
(I.R.S. Employer
Identification No.)
 
    
4582 South Ulster Street, Suite 1100   
Denver, Colorado 80237 
(Address of principal executive offices) (Zip Code) 
(303) 757-8101
(Registrant’s telephone number, including area code)
 
Not Applicable
(Former name, former address, and former fiscal year, if changed since last report)
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
Apartment Investment and Management Company: Yes x    No o
AIMCO Properties, L.P.: Yes x    No o
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).
Apartment Investment and Management Company: Yes x    No o
AIMCO Properties, L.P.: Yes x    No o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):
Apartment Investment and Management Company:
Large accelerated filerx Accelerated filero
Non-accelerated filero(Do not check if a smaller reporting company)Smaller reporting companyo
   Emerging growth companyo
     
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the exchange act. o
AIMCO Properties, L.P.:
Large accelerated filero Accelerated filerx
Non-accelerated filero(Do not check if a smaller reporting company)Smaller reporting companyo
   Emerging growth companyo
     
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the exchange act.
Apartment Investment and Management Companyo:
o
AIMCO Properties, L.P.:
o
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Apartment Investment and Management Company: Yes
oNox
AIMCO Properties, L.P.: Yes
oNox 
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
The number of shares of Apartment Investment and Management Company
Class A Common Stock outstanding as of May 7,November 1, 2018: 157,350,160155,644,246
The number of AIMCO Properties, L.P. Partnership Common Units outstanding as of May 7,November 1, 2018: 166,414,325164,665,715
 

EXPLANATORY NOTE
This filing combines the reports on Form 10-Q for the quarterly period ended March 31,September 30, 2018, of Apartment Investment and Management Company, or Aimco, and AIMCO Properties, L.P., or the Aimco Operating Partnership. Where it is important to distinguish between the two entities, we refer to them specifically. Otherwise, references to “we,” “us” or “our” mean, collectively, Aimco, the Aimco Operating Partnership and their consolidated entities.
Aimco, a Maryland corporation, is a self-administered and self-managed real estate investment trust, or REIT. Aimco, through wholly-owned subsidiaries, is the general and special limited partner of, and as of March 31,September 30, 2018, owned a 95.4%94.6% ownership interest in the common partnership units of, the Aimco Operating Partnership. The remaining 4.6%5.4% interest is owned by limited partners. As the sole general partner of the Aimco Operating Partnership, Aimco has exclusive control of the Aimco Operating Partnership’s day-to-day management.
The Aimco Operating Partnership holds all of Aimco’s assets and manages the daily operations of Aimco’s business. Pursuant to the Aimco Operating Partnership agreement, Aimco is required to contribute to the Aimco Operating Partnership any assets, which it may acquire including all proceeds from the offerings of its securities. In exchange for the contribution of these assets, Aimco receives additional interests in the Aimco Operating Partnership with similar terms (e.g., if Aimco contributes proceeds of a stock offering, Aimco receives partnership units with terms substantially similar to the stock issued by Aimco).
We believe combining the periodic reports of Aimco and the Aimco Operating Partnership into this single report provides the following benefits:
We present our business as a whole, in the same manner our management views and operates the business;
We eliminate duplicative disclosure and provide a more streamlined and readable presentation because a substantial portion of the disclosures apply to both Aimco and the Aimco Operating Partnership; and
We save time and cost through the preparation of a single combined report rather than two separate reports.
We operate Aimco and the Aimco Operating Partnership as one enterprise, the management of Aimco directs the management and operations of the Aimco Operating Partnership, and the members of the Board of Directors of Aimco are identical to those of the Aimco Operating Partnership.
We believe it is important to understand the few differences between Aimco and the Aimco Operating Partnership in the context of how Aimco and the Aimco Operating Partnership operate as a consolidated company. Aimco has no assets or liabilities other than its investment in the Aimco Operating Partnership. Also, Aimco is a corporation that issues publicly traded equity from time to time, whereas the Aimco Operating Partnership is a partnership that has no publicly traded equity. Except for the net proceeds from stock offerings by Aimco, which are contributed to the Aimco Operating Partnership in exchange for additional limited partnership interests (of a similar type and in an amount equal to the shares of stock sold in the offering), the Aimco Operating Partnership generates all remaining capital required by its business. These sources include the Aimco Operating Partnership’s working capital, net cash provided by operating activities, borrowings under its revolving credit facility, the issuance of debt and equity securities, including additional partnership units, and proceeds received from the sale of apartment communities.
Equity, partners’ capital and noncontrolling interests are the main areas of difference between the condensed consolidated financial statements of Aimco and those of the Aimco Operating Partnership. Interests in the Aimco Operating Partnership held by entities other than Aimco, which we refer to as OP Units, are classified within partners’ capital in the Aimco Operating Partnership’s financial statements and as noncontrolling interests in Aimco’s financial statements.
To help investors understand the differences between Aimco and the Aimco Operating Partnership, this report provides: separate condensed consolidated financial statements for Aimco and the Aimco Operating Partnership; a single set of condensed consolidated notes to such financial statements that includes separate discussions of each entity’s stockholders’ equity or partners’ capital, as applicable; and a combined Management’s Discussion and Analysis of Financial Condition and Results of Operations section that includes discrete information related to each entity, where appropriate.
This report also includes separate Part I, Item 4. Controls and Procedures sections and separate Exhibits 31 and 32 certifications for Aimco and the Aimco Operating Partnership in order to establish that the requisite certifications have been made and that Aimco and the Aimco Operating Partnership are both compliant with Rule 13a-15 or Rule 15d-15 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and 18 U.S.C. §1350.

APARTMENT INVESTMENT AND MANAGEMENT COMPANY
AIMCO PROPERTIES, L.P.

TABLE OF CONTENTS

FORM 10-Q

  Page
  
ITEM 1. 
  
 
 
 
 
  
 
 
 
 
 
ITEM 2.
ITEM 3.
ITEM 4.
  
ITEM 1A.
ITEM 2.
ITEM 6.
.


PART I. FINANCIAL INFORMATION

ITEM 1.Financial Statements
 
APARTMENT INVESTMENT AND MANAGEMENT COMPANY
CONDENSED CONSOLIDATED BALANCE SHEETS
(In thousands, except share data)
(Unaudited)

March 31,
2018
 December 31,
2017
September 30,
2018
 December 31,
2017
ASSETS      
Buildings and improvements$6,349,549
 $6,174,149
$6,503,956
 $6,174,149
Land1,761,238
 1,753,604
1,765,678
 1,753,604
Total real estate8,110,787
 7,927,753
8,269,634
 7,927,753
Accumulated depreciation(2,596,457) (2,522,358)(2,538,979) (2,522,358)
Net real estate5,514,330
 5,405,395
5,730,655
 5,405,395
Cash and cash equivalents51,894
 60,498
58,032
 60,498
Restricted cash38,999
 34,827
46,267
 34,827
Other assets371,152
 272,739
350,067
 272,739
Assets held for sale
 17,959

 17,959
Assets of partnerships served by Asset Management business:      
Real estate, net220,408
 224,873

 224,873
Cash and cash equivalents18,374
 16,288

 16,288
Restricted cash29,764
 30,928

 30,928
Other assets10,369
 15,533

 15,533
Total assets$6,255,290
 $6,079,040
$6,185,021
 $6,079,040
      
LIABILITIES AND EQUITY      
Non-recourse property debt secured by Real Estate communities, net$3,700,979
 $3,545,109
$3,646,789
 $3,545,109
Term loan, net249,729
 249,501

 249,501
Revolving credit facility borrowings78,635
 67,160

 67,160
Total indebtedness associated with Real Estate portfolio4,029,343
 3,861,770
3,646,789
 3,861,770
Accrued liabilities and other207,202
 200,540
242,782
 213,027
Liabilities of partnerships served by Asset Management business:      
Non-recourse property debt, net225,502
 227,141

 227,141
Accrued liabilities and other17,404
 19,812

 19,812
Deferred income11,814
 12,487
Total liabilities4,491,265
 4,321,750
3,889,571
 4,321,750
Preferred noncontrolling interests in Aimco Operating Partnership101,378
 101,537
101,320
 101,537
Commitments and contingencies (Note 4)
 

 
Equity:      
Perpetual Preferred Stock125,000
 125,000
125,000
 125,000
Common Stock, $0.01 par value, 500,787,260 shares authorized, 157,326,117 and 157,189,447 shares issued/outstanding at March 31, 2018 and December 31, 2017, respectively1,573
 1,572
Common Stock, $0.01 par value, 500,787,260 shares authorized, 157,352,109 and 157,189,447 shares issued/outstanding at September 30, 2018 and December 31, 2017, respectively1,574
 1,572
Additional paid-in capital3,885,279
 3,900,042
3,888,312
 3,900,042
Accumulated other comprehensive income3,544
 3,603
4,850
 3,603
Distributions in excess of earnings(2,345,206) (2,367,073)(1,894,054) (2,367,073)
Total Aimco equity1,670,190
 1,663,144
2,125,682
 1,663,144
Noncontrolling interests in consolidated real estate partnerships(2,755) (1,716)(1,605) (1,716)
Common noncontrolling interests in Aimco Operating Partnership(4,788) (5,675)70,053
 (5,675)
Total equity1,662,647
 1,655,753
2,194,130
 1,655,753
Total liabilities and equity$6,255,290
 $6,079,040
$6,185,021
 $6,079,040

See notes to condensed consolidated financial statements.

3

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APARTMENT INVESTMENT AND MANAGEMENT COMPANY
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(In thousands, except per share data)
(Unaudited)

Three Months EndedThree Months Ended Nine Months Ended
March 31,September 30, September 30,
2018 20172018 2017 2018 2017
REVENUES          
Rental and other property revenues attributable to Real Estate$225,393
 $225,228
$234,048
 $233,708
 $690,571
 $686,639
Rental and other property revenues of partnerships served by Asset Management business18,808
 18,562
5,022
 18,232
 42,830
 55,327
Tax credit and transaction revenues3,519
 2,691
3,411
 2,695
 6,987
 8,242
Total revenues247,720
 246,481
242,481
 254,635
 740,388
 750,208
          
OPERATING EXPENSES          
Property operating expenses attributable to Real Estate78,287
 79,626
78,254
 81,244
 232,572
 239,954
Property operating expenses of partnerships served by Asset Management business9,195
 9,198
2,608
 8,872
 20,865
 26,458
Depreciation and amortization92,548
 87,168
96,406
 92,513
 286,439
 268,836
General and administrative expenses11,355
 10,962
12,479
 10,529
 37,196
 31,599
Other expenses, net2,958
 1,738
5,780
 2,272
 13,624
 6,661
Total operating expenses194,343
 188,692
195,527
 195,430
 590,696
 573,508
Operating income53,377
 57,789
46,954
 59,205
 149,692
 176,700
Interest income2,172
 2,192
2,712
 2,047
 7,768
 6,251
Interest expense(47,795) (47,882)(45,492) (50,682) (143,193) (145,422)
Other, net224
 465
(283) 6,937
 141
 7,602
Income before income taxes and gain on dispositions7,978
 12,564
Income before income taxes and gain (loss) on dispositions3,891
 17,507
 14,408
 45,131
Income tax benefit37,388
 4,985
27,941
 4,870
 69,724
 14,878
Income before gain on dispositions45,366
 17,549
Gain (loss) on dispositions of real estate, inclusive of related income tax50,324
 (394)
Income before gain (loss) on dispositions31,832
 22,377
 84,132
 60,009
Gain (loss) on dispositions of real estate and the Asset Management business, inclusive of related income tax572,085
 (233) 622,631
 881
Net income95,690
 17,155
603,917
 22,144
 706,763
 60,890
Noncontrolling interests:          
Net income attributable to noncontrolling interests in consolidated real estate partnerships(6,206) (951)
Net (income) loss attributable to noncontrolling interests in consolidated real estate partnerships(1,794) 249
 (8,045) (1,515)
Net income attributable to preferred noncontrolling interests in Aimco Operating Partnership(1,937) (1,949)(1,934) (1,938) (5,805) (5,826)
Net income attributable to common noncontrolling interests in Aimco Operating Partnership(3,755) (557)(30,198) (820) (34,093) (2,164)
Net income attributable to noncontrolling interests(11,898) (3,457)(33,926) (2,509) (47,943) (9,505)
Net income attributable to Aimco83,792
 13,698
569,991
 19,635
 658,820
 51,385
Net income attributable to Aimco preferred stockholders(2,148) (2,148)(2,148) (2,148) (6,445) (6,445)
Net income attributable to participating securities(119) (59)(814) (57) (1,004) (176)
Net income attributable to Aimco common stockholders$81,525
 $11,491
$567,029
 $17,430
 $651,371
 $44,764
          
Net income attributable to Aimco per common share – basic and diluted$0.52
 $0.07
Net income attributable to Aimco per common share – basic$3.62
 $0.11
 $4.16
 $0.29
Net income attributable to Aimco per common share – diluted$3.61
 $0.11
 $4.15
 $0.29
Dividends declared per common share$0.38
 $0.36
$0.38
 $0.36
 $1.14
 $1.08
          
Weighted average common shares outstanding – basic156,609
 156,259
156,711
 156,306
 156,674
 156,290
Weighted average common shares outstanding – diluted156,740
 156,754
156,938
 156,835
 156,836
 156,768

See notes to condensed consolidated financial statements.

4

Table of Contents

APARTMENT INVESTMENT AND MANAGEMENT COMPANY
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(In thousands)
(Unaudited)

 Three Months Ended
 March 31,
 2018 2017
Net income$95,690
 $17,155
Other comprehensive loss:   
Unrealized gains (losses) on interest rate swaps419
 (10)
Losses on interest rate swaps reclassified into interest expense from accumulated other comprehensive loss119
 386
Unrealized losses on debt securities classified as available-for-sale(600) (1,501)
Other comprehensive loss(62) (1,125)
Comprehensive income95,628
 16,030
Comprehensive income attributable to noncontrolling interests(11,895) (3,460)
Comprehensive income attributable to Aimco$83,733
 $12,570
 Three Months Ended Nine Months Ended
 September 30, September 30,
 2018 2017 2018 2017
Net income$603,917
 $22,144
 $706,763
 $60,890
Other comprehensive gain:       
Realized and unrealized gains (losses) on interest rate swaps
 75
 
 (280)
Losses on interest rate swaps reclassified into earnings from accumulated other comprehensive loss757
 594
 1,391
 1,349
Unrealized gains (losses) on available for sale debt securities979
 381
 (72) (40)
Other comprehensive gain1,736
 1,050
 1,319
 1,029
Comprehensive income605,653
 23,194
 708,082
 61,919
Comprehensive income attributable to noncontrolling interests(34,020) (2,557) (48,015) (9,647)
Comprehensive income attributable to Aimco$571,633
 $20,637
 $660,067
 $52,272


See notes to condensed consolidated financial statements.

5

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APARTMENT INVESTMENT AND MANAGEMENT COMPANY
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)
(Unaudited)

Three Months EndedNine Months Ended
March 31,September 30,
2018 20172018 2017
CASH FLOWS FROM OPERATING ACTIVITIES:      
Net income$95,690
 $17,155
$706,763
 $60,890
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization92,548
 87,168
286,439
 268,836
(Gain) loss on dispositions of real estate, inclusive of related income tax(50,324) 394
Gain on dispositions of real estate and the Asset Management business, inclusive of related income tax(622,631) (881)
Income tax benefit(37,388) (4,985)(69,724) (14,878)
Other adjustments284
 1,196
11,762
 398
Net changes in operating assets and operating liabilities(19,487) (27,324)(9,683) (19,216)
Net cash provided by operating activities81,323
 73,604
302,926
 295,149
CASH FLOWS FROM INVESTING ACTIVITIES:      
Purchases of real estate and deposits related to purchases of real estate(164,650) (4,995)(212,358) (11,706)
Capital expenditures(75,601) (82,151)(253,149) (266,623)
Proceeds from dispositions of real estate69,788
 2,179
708,464
 10,888
Purchases of corporate assets(947) (2,810)(5,530) (7,358)
Other investing activities(218) 94
1,695
 (1,086)
Net cash used in investing activities(171,628) (87,683)
Net cash provided by (used in) investing activities239,122
 (275,885)
CASH FLOWS FROM FINANCING ACTIVITIES:      
Proceeds from non-recourse property debt360,613
 68,535
360,613
 165,785
Principal repayments on non-recourse property debt(206,262) (32,026)
Net borrowings on revolving credit facility11,475
 51,770
Principal repayments of non-recourse property debt(403,141) (250,674)
(Repayment of) proceeds from term loan(250,000) 250,000
Net (repayments of) borrowings on revolving credit facility(67,160) 338,290
Payment of dividends to holders of Preferred Stock(2,148) (2,148)(6,445) (6,445)
Payment of dividends to holders of Common Stock(59,652) (56,328)(178,937) (168,987)
Payment of distributions to noncontrolling interests(11,902) (5,790)(22,549) (15,829)
Purchases and redemptions of noncontrolling interests(8,341) (4,628)(12,256) (324,265)
Other financing activities3,012
 2,167
(415) (4,693)
Net cash provided by financing activities86,795
 21,552
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH(3,510) 7,473
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT BEGINNING OF PERIOD142,541
 131,150
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT END OF PERIOD$139,031
 $138,623
Net cash used in financing activities(580,290) (16,818)
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH(38,242) 2,446
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF PERIOD142,541
 131,150
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD$104,299
 $133,596

See notes to condensed consolidated financial statements.

6

Table of Contents

 
AIMCO PROPERTIES, L.P.
CONDENSED CONSOLIDATED BALANCE SHEETS
(In thousands)
(Unaudited)

March 31,
2018
 December 31,
2017
September 30,
2018
 December 31,
2017
ASSETS      
Buildings and improvements$6,349,549
 $6,174,149
$6,503,956
 $6,174,149
Land1,761,238
 1,753,604
1,765,678
 1,753,604
Total real estate8,110,787
 7,927,753
8,269,634
 7,927,753
Accumulated depreciation(2,596,457) (2,522,358)(2,538,979) (2,522,358)
Net real estate5,514,330
 5,405,395
5,730,655
 5,405,395
Cash and cash equivalents51,894
 60,498
58,032
 60,498
Restricted cash38,999
 34,827
46,267
 34,827
Other assets371,152
 272,739
350,067
 272,739
Assets held for sale
 17,959

 17,959
Assets of partnerships served by Asset Management business:      
Real estate, net220,408
 224,873

 224,873
Cash and cash equivalents18,374
 16,288

 16,288
Restricted cash29,764
 30,928

 30,928
Other assets10,369
 15,533

 15,533
Total assets$6,255,290
 $6,079,040
$6,185,021
 $6,079,040
      
LIABILITIES AND EQUITY      
Non-recourse property debt secured by Real Estate communities, net$3,700,979
 $3,545,109
$3,646,789
 $3,545,109
Term loan, net249,729
 249,501

 249,501
Revolving credit facility borrowings78,635
 67,160

 67,160
Total indebtedness associated with Real Estate portfolio4,029,343
 3,861,770
3,646,789
 3,861,770
Accrued liabilities and other207,202
 200,540
242,782
 213,027
Liabilities of partnerships served by Asset Management business:      
Non-recourse property debt, net225,502
 227,141

 227,141
Accrued liabilities and other17,404
 19,812

 19,812
Deferred income11,814
 12,487
Total liabilities4,491,265
 4,321,750
3,889,571
 4,321,750
Redeemable preferred units101,378
 101,537
101,320
 101,537
Commitments and contingencies (Note 4)
 

 
Partners’ capital:      
Preferred units125,000
 125,000
125,000
 125,000
General Partner and Special Limited Partner1,545,190
 1,538,144
2,000,682
 1,538,144
Limited Partners(4,788) (5,675)70,053
 (5,675)
Partners’ capital attributable to the Aimco Operating Partnership1,665,402
 1,657,469
2,195,735
 1,657,469
Noncontrolling interests in consolidated real estate partnerships(2,755) (1,716)(1,605) (1,716)
Total partners’ capital1,662,647
 1,655,753
2,194,130
 1,655,753
Total liabilities and partners’ capital$6,255,290
 $6,079,040
$6,185,021
 $6,079,040

See notes to condensed consolidated financial statements.

7

Table of Contents

AIMCO PROPERTIES, L.P.
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(In thousands, except per unit data)
(Unaudited)

Three Months EndedThree Months Ended Nine Months Ended
March 31,September 30, September 30,
2018 20172018 2017 2018 2017
REVENUES          
Rental and other property revenues attributable to Real Estate$225,393
 $225,228
$234,048
 $233,708
 $690,571
 $686,639
Rental and other property revenues of partnerships served by Asset Management business18,808
 18,562
5,022
 18,232
 42,830
 55,327
Tax credit and transaction revenues3,519
 2,691
3,411
 2,695
 6,987
 8,242
Total revenues247,720
 246,481
242,481
 254,635
 740,388
 750,208
          
OPERATING EXPENSES          
Property operating expenses attributable to Real Estate78,287
 79,626
78,254
 81,244
 232,572
 239,954
Property operating expenses of partnerships served by Asset Management business9,195
 9,198
2,608
 8,872
 20,865
 26,458
Depreciation and amortization92,548
 87,168
96,406
 92,513
 286,439
 268,836
General and administrative expenses11,355
 10,962
12,479
 10,529
 37,196
 31,599
Other expenses, net2,958
 1,738
5,780
 2,272
 13,624
 6,661
Total operating expenses194,343
 188,692
195,527
 195,430
 590,696
 573,508
Operating income53,377
 57,789
46,954
 59,205
 149,692
 176,700
Interest income2,172
 2,192
2,712
 2,047
 7,768
 6,251
Interest expense(47,795) (47,882)(45,492) (50,682) (143,193) (145,422)
Other, net224
 465
(283) 6,937
 141
 7,602
Income before income taxes and gain on dispositions7,978
 12,564
Income before income taxes and gain (loss) on dispositions3,891
 17,507
 14,408
 45,131
Income tax benefit37,388
 4,985
27,941
 4,870
 69,724
 14,878
Income before gain on dispositions45,366
 17,549
Gain (loss) on dispositions of real estate, inclusive of related income tax50,324
 (394)
Income before gain (loss) on dispositions31,832
 22,377
 84,132
 60,009
Gain (loss) on dispositions of real estate and the Asset Management business, inclusive of related income tax572,085
 (233) 622,631
 881
Net income95,690
 17,155
603,917
 22,144
 706,763
 60,890
Net income attributable to noncontrolling interests in consolidated real estate partnerships(6,206) (951)
Net (income) loss attributable to noncontrolling interests in consolidated real estate partnerships(1,794) 249
 (8,045) (1,515)
Net income attributable to the Aimco Operating Partnership89,484
 16,204
602,123
 22,393
 698,718
 59,375
Net income attributable to the Aimco Operating Partnership’s preferred unitholders(4,085) (4,097)(4,082) (4,086) (12,250) (12,271)
Net income attributable to participating securities(125) (60)(941) (61) (1,145) (184)
Net income attributable to the Aimco Operating Partnership’s common unitholders$85,274
 $12,047
$597,100
 $18,246
 $685,323
 $46,920
          
Net income attributable to the Aimco Operating Partnership per common unit – basic and diluted$0.52
 $0.07
Net income attributable to the Aimco Operating Partnership per common unit – basic$3.62
 $0.11
 $4.17
 $0.29
Net income attributable to the Aimco Operating Partnership per common unit – diluted$3.61
 $0.11
 $4.16
 $0.29
Distributions declared per common unit$0.38
 $0.36
$0.38
 $0.36
 $1.14
 $1.08
          
Weighted average common units outstanding – basic163,825
 163,814
165,081
 163,664
 164,493
 163,739
Weighted average common units outstanding – diluted163,959
 164,310
165,326
 164,194
 164,654
 164,218
 

See notes to condensed consolidated financial statements.

8

Table of Contents

AIMCO PROPERTIES, L.P.
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(In thousands)
(Unaudited)

 Three Months Ended
 March 31,
 2018 2017
Net income$95,690
 $17,155
Other comprehensive loss:   
Unrealized gains (losses) on interest rate swaps419
 (10)
Losses on interest rate swaps reclassified into interest expense from accumulated other comprehensive loss119
 386
Unrealized losses on debt securities classified as available-for-sale(600) (1,501)
Other comprehensive loss(62) (1,125)
Comprehensive income95,628
 16,030
Comprehensive income attributable to noncontrolling interests(6,206) (1,009)
Comprehensive income attributable to the Aimco Operating Partnership$89,422
 $15,021
 Three Months Ended Nine Months Ended
 September 30, September 30,
 2018 2017 2018 2017
Net income$603,917
 $22,144
 $706,763
 $60,890
Other comprehensive gain:       
Realized and unrealized gains (losses) on interest rate swaps
 75
 
 (280)
Losses on interest rate swaps reclassified into earnings from accumulated other comprehensive loss757
 594
 1,391
 1,349
Unrealized gains (losses) on available for sale debt securities979
 381
 (72) (40)
Other comprehensive gain1,736
 1,050
 1,319
 1,029
Comprehensive income605,653
 23,194
 708,082
 61,919
Comprehensive (income) loss attributable to noncontrolling interests(1,794) 249
 (8,045) (1,616)
Comprehensive income attributable to the Aimco Operating Partnership$603,859
 $23,443
 $700,037
 $60,303


See notes to condensed consolidated financial statements.

9

Table of Contents

AIMCO PROPERTIES, L.P.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)
(Unaudited)

Three Months EndedNine Months Ended
March 31,September 30,
2018 20172018 2017
CASH FLOWS FROM OPERATING ACTIVITIES:      
Net income$95,690
 $17,155
$706,763
 $60,890
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization92,548
 87,168
286,439
 268,836
(Gain) loss on dispositions of real estate, inclusive of related income tax(50,324) 394
Gain on dispositions of real estate and the Asset Management business, inclusive of related income tax(622,631) (881)
Income tax benefit(37,388) (4,985)(69,724) (14,878)
Other adjustments284
 1,196
11,762
 398
Net changes in operating assets and operating liabilities(19,487) (27,324)(9,683) (19,216)
Net cash provided by operating activities81,323
 73,604
302,926
 295,149
CASH FLOWS FROM INVESTING ACTIVITIES:      
Purchases of real estate and deposits related to purchases of real estate(164,650) (4,995)(212,358) (11,706)
Capital expenditures(75,601) (82,151)(253,149) (266,623)
Proceeds from dispositions of real estate69,788
 2,179
708,464
 10,888
Purchases of corporate assets(947) (2,810)(5,530) (7,358)
Other investing activities(218) 94
1,695
 (1,086)
Net cash used in investing activities(171,628) (87,683)
Net cash provided by (used in) investing activities239,122
 (275,885)
CASH FLOWS FROM FINANCING ACTIVITIES:      
Proceeds from non-recourse property debt360,613
 68,535
360,613
 165,785
Principal repayments on non-recourse property debt(206,262) (32,026)
Net borrowings on revolving credit facility11,475
 51,770
Principal repayments of non-recourse property debt(403,141) (250,674)
(Repayment of) proceeds from term loan(250,000) 250,000
Net (repayments of) borrowings on revolving credit facility(67,160) 338,290
Payment of distributions to holders of Preferred Units(4,085) (4,097)(12,250) (12,271)
Payment of distributions to General Partner and Special Limited Partner(59,652) (56,328)(178,937) (168,987)
Payment of distributions to Limited Partners(2,737) (2,718)(8,810) (8,026)
Payment of distributions to noncontrolling interests(7,228) (1,123)(7,934) (1,977)
Purchases of noncontrolling interests in consolidated real estate partnerships(1,221) 
(3,581) (311,079)
Purchases and redemptions of noncontrolling interests in the Aimco Operating Partnership(8,675) (13,187)
Other financing activities(4,108) (2,461)(415) (4,692)
Net cash provided by financing activities86,795
 21,552
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH(3,510) 7,473
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT BEGINNING OF PERIOD142,541
 131,150
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT END OF PERIOD$139,031
 $138,623
Net cash used in financing activities(580,290) (16,818)
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH(38,242) 2,446
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF PERIOD142,541
 131,150
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD$104,299
 $133,596

See notes to condensed consolidated financial statements.

10

Table of Contents

APARTMENT INVESTMENT AND MANAGEMENT COMPANY
AIMCO PROPERTIES, L.P.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
March 31,September 30, 2018
(Unaudited)

Note 1 — Organization
Apartment Investment and Management Company, or Aimco, is a Maryland corporation incorporated on January 10, 1994. Aimco is a self-administered and self-managed real estate investment trust, or REIT. AIMCO Properties, L.P., or the Aimco Operating Partnership, is a Delaware limited partnership formed on May 16, 1994, to conduct our business, which is focused on the ownership, management, redevelopment and limited development of quality apartment communities located in someseveral of the largest markets in the United States.
Aimco, through its wholly-owned subsidiaries, AIMCO-GP, Inc. and AIMCO-LP Trust, owns a majority of the ownership interests in the Aimco Operating Partnership. Aimco conducts all of its business and owns all of its assets through the Aimco Operating Partnership. Interests in the Aimco Operating Partnership that are held by limited partners other than Aimco are referred to as OP Units. OP Units include common partnership units, which we refer to as common OP Units, as well as partnership preferred units, which we refer to as preferred OP Units. As of March 31,September 30, 2018, after eliminations for units held by consolidated subsidiaries, the Aimco Operating Partnership had 164,881,653166,384,727 common partnership units outstanding. As of March 31,September 30, 2018, Aimco owned 157,326,117157,352,109 of the common partnership units (95.4%(94.6% of the common partnership units) of the Aimco Operating Partnership and Aimco had outstanding an equal number of shares of its Class A Common Stock, which we refer to as Common Stock.
Except as the context otherwise requires, “we,” “our” and “us” refer to Aimco, the Aimco Operating Partnership and their consolidated subsidiaries, collectively.
As of March 31,September 30, 2018, we owned an equity interest in 134133 apartment communitiescommunities with 37,22836,481 apartment homes in our Real Estate portfolio. Our Real Estate portfolio is diversified by both price point and geography and consists primarily of market rate apartment communities in which we own a substantial interest. We consolidated 130129 of these apartment communities with 37,08636,339 apartment homes and these communities comprise our reportable segment.
As of March 31, 2018, we also held nominal ownership positions in partnerships that own 46 low-income housing tax credit apartment communities with 6,898 apartment homes. We provide services to these partnerships and receive fees and other payments in return. Our relationship with these partnerships is different than real estate ownership and is better described as an asset management business, or Asset Management. In accordance with accounting principles generally accepted in the United States of America, or GAAP, we are required to consolidate partnerships owning an aggregate of 39 apartment communities with 6,211 apartment homes.
In April 2018, we announced the planned sale of our Asset Management business, as well as the sale of four affordable communities included in our Real Estate portfolio.
Note 2 — Basis of Presentation and Summary of Significant Accounting Policies
Basis of Presentation
The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted in accordance with such rules and regulations, although management believes the disclosures are adequate to prevent the information presented from being misleading. In the opinion of management, all adjustments (consisting of normal recurring items) considered necessary for a fair presentation have been included. Operating results for the three and nine months ended March 31,September 30, 2018, are not necessarily indicative of the results that may be expected for the year ending December 31, 2018.
The balance sheets of Aimco and the Aimco Operating Partnership at December 31, 2017, have been derived from their respective audited financial statements at that date, but do not include all of the information and disclosures required by GAAP for complete financial statements. For further information, refer to the financial statements and notes thereto included in Aimco’s and the Aimco Operating Partnership’s combined Annual Report on Form 10-K for the year ended December 31, 2017. Except where indicated, the footnotes refer to both Aimco and the Aimco Operating Partnership.

Principles of Consolidation
Aimco’s accompanying condensed consolidated financial statements include the accounts of Aimco, the Aimco Operating Partnership, and their consolidated subsidiaries. The Aimco Operating Partnership’s condensed consolidated financial statements include the accounts of the Aimco Operating Partnership and its consolidated subsidiaries including partnerships served by our Asset Management business (see Note 8). All significant intercompany balances and transactions have been eliminated in consolidation.
Interests in the Aimco Operating Partnership that are held by limited partners other than Aimco are reflected in Aimco’s accompanying condensed consolidated balance sheets as noncontrolling interests in the Aimco Operating Partnership. Interests in partnerships consolidated by the Aimco Operating Partnership that are held by third parties are reflected in our accompanying condensed consolidated balance sheets as noncontrolling interests in consolidated real estate partnerships.
Temporary Equity and Partners’ Capital
The following table presents a reconciliation of the Aimco Operating Partnership’s preferred OP Units from December 31, 2017 to March 31,September 30, 2018. The preferred OP Units may be redeemed at the holders’ option (as further discussed in Note 5), and are therefore presented within temporary equity in Aimco’s condensed consolidated balance sheets and within temporary capital in the Aimco Operating Partnership’s condensed consolidated balance sheets (in thousands).
Balance, December 31, 2017$101,537
$101,537
Distributions to holders of preferred OP Units(1,937)(5,805)
Redemption of preferred OP Units and other(159)(217)
Net income attributable to preferred OP Units1,937
5,805
Balance, March 31, 2018$101,378
Balance, September 30, 2018$101,320
Aimco Equity (including Noncontrolling Interests)
The following table presents a reconciliation of Aimco’s consolidated permanent equity accounts from December 31, 2017 to March 31,September 30, 2018 (in thousands):
Aimco
Equity
 
Noncontrolling
interests in
consolidated real estate
partnerships
 
Common
noncontrolling
interests in
Aimco Operating
Partnership
 
Total
Equity
Aimco
Equity
 
Noncontrolling
interests in
consolidated real estate
partnerships
 
Common
noncontrolling
interests in
Aimco Operating
Partnership
 
Total
Equity
Balance, December 31, 2017$1,663,144
 $(1,716) $(5,675) $1,655,753
$1,663,144
 $(1,716) $(5,675) $1,655,753
Contributions
 (20) 
 (20)
Issuance of common OP Units
 
 50,151
 50,151
Dividends on Preferred Stock(2,148) 
 
 (2,148)(6,445) 
 
 (6,445)
Dividends and distributions on Common Stock and common OP Units(59,777) (7,225) (2,838) (69,840)(179,351) (7,934) (9,402) (196,687)
Redemptions of common OP Units
 
 (6,963) (6,963)
 
 (8,458) (8,458)
Amortization of stock-based compensation cost2,631
 
 357
 2,988
6,285
 
 1,236
 7,521
Effect of changes in ownership for consolidated entities(17,486) 
 6,579
 (10,907)(18,137) 
 8,036
 (10,101)
Change in accumulated other comprehensive loss(59) 
 (3) (62)1,247
 
 72
 1,319
Other93
 
 
 93
119
 
 
 119
Net income83,792
 6,206
 3,755
 93,753
658,820
 8,045
 34,093
 700,958
Balance, March 31, 2018$1,670,190
 $(2,755) $(4,788) $1,662,647
Balance, September 30, 2018$2,125,682
 $(1,605) $70,053
 $2,194,130

Partners’ Capital attributable to the Aimco Operating Partnership
The following table presents a reconciliation of the consolidated partners’ capital balances in permanent capital that are attributable to the Aimco Operating Partnership from December 31, 2017 to March 31,September 30, 2018 (in thousands):
Partners’ capital
 attributable to
the Aimco Operating Partnership
Partners’ capital
 attributable to
the Aimco Operating Partnership
Balance, December 31, 2017$1,657,469
$1,657,469
Issuance of common OP Units50,151
Distributions to preferred units held by Aimco(2,148)(6,445)
Distributions to common units held by Aimco(59,777)(179,351)
Distributions to common units held by Limited Partners(2,838)(9,402)
Redemption of common OP Units(6,963)(8,458)
Amortization of Aimco stock-based compensation cost2,988
7,521
Effect of changes in ownership for consolidated entities(10,907)(10,101)
Change in accumulated other comprehensive loss(62)1,319
Other93
119
Net income87,547
692,913
Balance, March 31, 2018$1,665,402
Balance, September 30, 2018$2,195,735
A separate reconciliation of noncontrolling interests in consolidated real estate partnerships and total partners’ capital for the Aimco Operating Partnership is not presented as these amounts are identical to the corresponding noncontrolling interests in consolidated real estate partnerships and total equity for Aimco, which are presented above.
Use of Estimates
The preparation of our condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts included in the financial statements and accompanying notes thereto. Actual results could differ from those estimates.
Reclassifications
Certain items included in the year-to-date 2018 and 2017 financial statements have been reclassified to conform to the current presentation.
Income Taxes
As discussed in Note 9 to the consolidated financial statements in Item 8 of our Form 10-K for the year ended December 31, 2017, we have not completed our accounting for the tax effects of the enactment of the Tax Cuts and Jobs Act in late December 2017. DuringDue to the threesale of our Asset Management business, discussed further in Note 3, during the nine months ended March 31,September 30, 2018, we recognized a measurement period adjustment to reduce by $11.3 million an estimatedreversed the remaining valuation allowance recognized as of December 31, 2017. During the three months ended March 31, 2018,2017, against our deferred tax benefits that we also recognized an offsetting valuation allowance resulting from an intercompany transfer of assets relatednow expect to the Asset Management business. These adjustments had no net effect on our results of operations or effective tax rate.utilize.
Accounting Pronouncements Adopted in the Current Year
Effective January 1, 2018, we adopted a new standard issued by the Financial Accounting Standards Board, or FASB, that affects accounting for revenue. Under this new standard, revenue is generally recognized when an entity has transferred control of goods or services to a customer for an amount reflecting the consideration to which the entity expects to be entitled for such exchange. In evaluating the contracts we enter into in the ordinary course of business, substantially all of our revenue is generated by lease agreements, which will continue to be subject to existing GAAP until 2019, when we will adopt the new lease accounting standard.
The new revenue standard also introduced new guidance for accounting for other income, including how we measure gains or losses on the sale of real estate. We adopted the new standard using the modified retrospective transition method effective January 1, 2018, with no effect on our results of operations or financial position.

Effective January 1, 2018, we also adopted new standards issued by the FASB that affect the presentation and disclosure of the statements of cash flows. We are now required to present combined inflows and outflows of cash, cash equivalents, and restricted cash in the consolidated statement of cash flows. Previously our consolidated statements of cash flows presented transfers between restricted and unrestricted cash accounts as operating, financing, and investing cash activities depending upon the required or intended purpose for the restricted funds. The new guidance also requires debt prepayment and other extinguishment related payments to be classified as financing activities. We previously classified such payments as operating activities. We have revised our condensed consolidated statements of cash flows for the threenine months ended March 31,September 30, 2017 to conform to this

presentation, and the effect of the revisions to net cash flows from operating, investing, and investingfinancing activities as previously reported for threethe nine months ended March 31,September 30, 2017 are summarized in the following table (in thousands):
 As Previously Reported Adjustments As Revised
Net cash flows from operating activities$68,516
 $5,088
 $73,604
Net cash flows from investing activities(86,238) (1,445) (87,683)
 As Previously Reported Adjustments As Revised
Net cash provided by operating activities$285,025
 $10,124
 $295,149
Net cash used in investing activities(274,139) (1,746) (275,885)
Net cash used in financing activities(16,449) (369) (16,818)
Recent Accounting Pronouncements
In 2018, the Securities Exchange Commission, or SEC, amended its rules to eliminate, modify, or integrate into other SEC requirements certain disclosure rules. The amendments are intended to simplify compliance without significantly changing the total mix of information provided to investors and are generally effective on November 5, 2018. The amendments remove the SEC rule that requires REITs to present gain or loss on the sale of real estate, net of income tax, in the statement of operations. Consistent with the SEC’s historical requirements, we present gain or loss on dispositions of real estate below continuing operations and net of tax. Accordingly we will recast our consolidated statements of operations to present gain or loss on dispositions of real estate as a component of income before income taxes beginning in our financial statements for the year ending December 31, 2018. Additionally, SEC rules currently require changes in equity subsequent to the prior year-end as either a separate financial statement or in the notes to interim financial statements. We present changes in equity within a footnote to our interim condensed consolidated financial statements in accordance with the SEC rule. The amendments create a requirement to report changes in equity and dividends per share in interim periods as a separate financial statement or within a footnote on a comparative basis for both quarter-to-date and year-to-date periods presented. This disclosure is required for interim financial statements of quarters beginning after the effective date; therefore, we will present comparative interim statements of stockholders equity beginning in our condensed consolidated financial statements for the three months ending March 31, 2019.
In 2018, the FASB amended the new standard on lease accounting, which is effective for us on January 1, 2019. The amendment introduced an optional transition method, which allows the recognition of a cumulative-effect adjustment in the period of adoption and for prior reporting periods to remain as originally presented. Additionally, the amendment introduced a practical expedient for lessors to account for lease and nonlease components as a single component if the timing and pattern of transfer of components are the same, and the lease component would be classified as an operating lease if accounted for separately. We have substantially completed our evaluation of the amendment and expect to elect both the transition option and lessor practical expedient concurrent with our adoption of the standard. We do not anticipate significant changes in the timing of income from our leases with residents. However, in circumstances where we are a lessee, primarily a few ground leases and leases for corporate office space, we will be required to recognize right of use assets and related lease liabilities on our consolidated balance sheets. We are in the process of determining the amount of the right of use assets and related lease liabilities that will be recognized upon adoption.
Note 3 — Significant Transactions, Acquisitions and Dispositions of Apartment Communities and Assets Held for Sale
Acquisition of Apartment Communities
During the threenine months ended March 31,September 30, 2018, we purchasedacquired for $160.0 million Bent Tree Apartments, a 748-apartment home community in Fairfax County, Virginia. The purchase price, plus $1.0 million of capitalized transaction costs, was allocated as follows: $47.0 million to land; $113.0 million to buildings and improvements; and $1.0 million to other items.
Subsequent to March 31,During the nine months ended September 30, 2018, we entered into a transaction to acquire sixacquired four apartment communities in the Philadelphia area, for a stated purchase price of $445.0 million. The portfolio includes 1,006 existing apartment homes, 110 apartment homes under construction, and 185,000 square feet of office and retail space. The acquisition will be funded initially through taking title subject to $290.0 million of non-recourse property debt, issuance of $90.0 million in common OP Units valued in the transaction at their estimated net asset value per unit (approximately 1.7 million common OP Units), and payment of $65.0 million in cash. In accordance with GAAP, the portion of the purchase price attributed to the common OP Units issued will be valued at the closing price of Aimco’s common stock on the dates of issuance.
On May 1, 2018, we completed the acquisition of four of the six apartment communities including 665 apartment homes and 153,000 square feet of office and retail space. We anticipateThe gross purchase price consisted of $208.9 million of assumed property-level debt and the acquisitionissuance of 1.2 million OP Units. In accordance with GAAP, the fifthOP Units were valued at $41.08 per unit, the closing price of Aimco’s common share on May 1, 2018. Total consideration, plus $6.4 million of capitalized transaction costs, was allocated as follows: $14.1 million to land; $289.7 million to buildings and improvements; $8.3 million to intangible assets; and $12.3 millionto intangible liabilities. In connection with the foregoing, we have also contracted to acquire

an additional apartment community duringin the summer of 2018 and the acquisition of the final apartment communityPhiladelphia area, which is expected to be purchased upon completion of the construction expected in the first half of 2019.
Dispositions of Apartment Communities and Assets Held for Sale
During the threenine months ended March 31,September 30, 2018, we sold threefour apartment communities with 5131,334 apartment homes for a gain on disposition of $50.6$173.2 million, net of income tax, and gross proceeds of $71.9$242.3 million resulting in $64.6$230.1 million in net proceeds to us. Two of these communities are located in southern Virginia, one in suburban Maryland, and one is located in suburban Maryland.north Philadelphia.
During the threenine months ended March 31,September 30, 2018, we sold our interests in the entities owning the La Jolla Cove property in settlement of legal actions filed in 2014 by a group of disappointed buyers who had hoped to acquire the property. We provided seller financing with a stated value of $48.6 million and received net cash proceeds of approximately $5.0 million in the sale.
During the nine months ended September 30, 2018, we sold for $590.0 million our Asset Management business and our four affordable apartment communities located in the Hunters Point area of San Francisco. The sale resulted in a gain of $448.2 million, net of $54.1 million of taxes, and net cash proceeds of $512.2 million after payment of transaction costs and repayment of property-level debt encumbering the Hunters Point apartment communities.
In addition to the apartment communities we sold during the periods presented, from time to time we may be marketing for sale certain apartment communities that are inconsistent with our long-term investment strategy. At the end of each reporting period, we evaluate whether such communities meet the criteria to be classified as held for sale. As of March 31,September 30, 2018, no apartment communities were classified as held for sale.
In April 2018, we entered into a binding agreement to sell for $590.0 million our Asset Management business and four affordable communities included in our Real Estate portfolio. We expect to close this transaction during the third quarter of 2018. After payment of closing costs and repayment of property level debt encumbering the Hunters Point apartment communities, net proceeds are expected to be approximately $512.0 million.
Note 4 — Commitments and Contingencies
Commitments
In connection with our redevelopment, development and capital improvement activities, we have entered into various construction-related contracts and we have made commitments to complete redevelopment and development of certain apartment communities, pursuant to financing or other arrangements. As of March 31,September 30, 2018, our commitments related to these capital activities totaled approximately $160.0$130.6 million, most of which we expect to incur during the next 12 months.
We enter into certain commitments for future purchases of goods and services in connection with the operations of our apartment communities. Those commitments generally have terms of one year or less and reflect expenditure levels comparable to our historical expenditures.

Tax Credit Arrangements
For various consolidated partnerships served by our Asset Management business prior to its sale, we arewere required to manage the partnerships and related apartment communities in compliance with various laws, regulations and contractual provisions that apply to historic and low-income housing tax credit syndication arrangements. In some instances, noncompliance with applicable requirements could result in projected tax benefits not being realized by the limited partners in these partnerships and would require a refund or reduction of investor capital contributions which are reported as deferred income infor actions taken during our condensed consolidated balance sheets, until such time as our obligation to deliver tax benefits is relieved.ownership. In connection with the expected third quarterJuly 25, 2018, sale of our Asset Management business, thisthe performance obligation will berelated to continuing compliance was assumed by the purchaser.
Income Taxes
In 2014, the Internal Revenue Service initiated an audit of the Aimco Operating Partnership’s 2011 and 2012 tax years. We do not believe the audit will have any material effect on our unrecognized tax benefits, financial condition or results of operations.
Legal Matters
In addition to the matters described below, we are a party to various legal actions and administrative proceedings arising in the ordinary course of business, some of which are covered by our general liability insurance program, and none of which we expect to have a material adverse effect on our consolidated financial condition, results of operations or cash flows.
Environmental
Various federal, state and local laws subject apartment community owners or operators to liability for management, and the costs of removal or remediation, of certain potentially hazardous materials that may be present in the land or buildings of an apartment community. Such laws often impose liability without regard to fault or whether the owner or operator knew of, or was responsible for, the presence of such materials. The presence of, or the failure to manage or remediate properly, these materials may adversely affect occupancy at such apartment communities as well as the ability to sell or finance such apartment communities.

In addition, governmental agencies may bring claims for costs associated with investigation and remediation actions. Moreover, private plaintiffs may potentially make claims for investigation and remediation costs they incur or for personal injury, disease, disability or other infirmities related to the alleged presence of hazardous materials. In addition to potential environmental liabilities or costs associated with our current apartment communities, we may also be responsible for such liabilities or costs associated with communities we acquire or manage in the future, or apartment communities we no longer own or operate.
We are engaged in discussions with the Environmental Protection Agency, or EPA, and the Indiana Department of Environmental Management, or IDEM, regarding contaminated groundwater in a residential area in the vicinity of an Indiana apartment community that has not been owned by us since 2008. The contamination allegedly derives from a dry cleaner that operated on our former property, prior to our ownership. We have undertaken a voluntary remediation of the dry cleaner contamination under IDEM’s oversight, and in previous years accrued our share of the then-estimated cleanup and abatement costs. In 2016, EPA listed our former community and a number of residential communities in the vicinity on the National Priorities List, or NPL (i.e. as a Superfund site),. In May 2018, we prevailed on our federal judicial appeal vacating the Superfund listing. We continue to work with EPA and IDEM has formally sought to terminate us from the voluntary remediation program. We continue discussions with both agencies on potential long-term solutions. We have filed a formal appealidentify options for clean-up of the EPA listing and the IDEM termination of us from the voluntary remediation program.site. Although the outcome of these processes are uncertain, we do not expect their resolution to have a material adverse effect on our consolidated financial condition, results of operations or cash flows.
We also have been contacted by regulators and the current owner of a property in Lake Tahoe, California, regarding environmental issues allegedly stemming from the historic operation of a dry cleaner. An entity owned by us was the former general partner of a now-dissolved partnership that previously owned a site that was used for dry cleaning. That entity and the current property owner have been remediating the dry cleaner site since 2009, under the oversight of the Lahontan Regional Water Quality Control Board, or Lahontan. In May 2017, Lahontan issued a final cleanup and abatement order that names four potentially-responsible parties, acknowledges that there may be additional responsible parties, and requires the named parties to perform additional groundwater investigation and corrective actions with respect to onsite and offsite contamination. We are appealing the final order while simultaneously complying with it. Although the outcome of this process is uncertain, we do not expect its resolution to have a material adverse effect on our consolidated financial condition, results of operations or cash flows.
We have determined that our legal obligations to remove or remediate certain potentially hazardous materials may be conditional asset retirement obligations, as defined in GAAP. Except in limited circumstances where the asset retirement activities are expected to be performed in connection with a planned construction project or apartment community casualty, we believe that the fair value of our asset retirement obligations cannot be reasonably estimated due to significant uncertainties in the timing and manner of settlement of those obligations. Asset retirement obligations that are reasonably estimable as of March 31,September 30, 2018, are immaterial to our consolidated financial condition, results of operations and cash flows.

Note 5 — Earnings per Share and Unit
Aimco and the Aimco Operating Partnership calculate basic earnings per common share and basic earnings per common unit based on the weighted average number of shares of Common Stock and common partnership units and participating securities outstanding, and calculate diluted earnings per share and diluted earnings per unit taking into consideration dilutive common stock and common partnership unit equivalents and dilutive convertible securities outstanding during the period.
Our common stock and common partnership unit equivalents include options to purchase shares of Common Stock, which, if exercised, would result in Aimco’s issuance of additional shares and the Aimco Operating Partnership’s issuance to Aimco of additional common partnership units equal to the number of shares purchased under the options. These equivalents also include unvested total stockholder return, or TSR, restricted stock awards that do not meet the definition of participating securities, which would result in an increase in the number of common shares and common partnership units outstanding equal to the number of shares that vest. The dilutive effect of 0.1 million and 0.5 million of these securities was dilutive0.2 million shares or units for the three and nine months ended March 31, 2018September 30, 2018. The dilutive effect of these securities was 0.5 million shares or units for the three and 2017, respectively, and isnine months ended September 30, 2017. Securities with dilutive effect are included in the denominator for calculating diluted earnings per share and unit during these periods. For the three months ended March 31, 2018,There were 0.2 million potential shares and 0.30.2 million potential units were not dilutive and have been excluded from the denominator for calculating dilutivediluted earnings per share and per unit, respectively, for both the period.three and nine months ended September 30, 2018 and 2017.
Our time-based restricted stock awards receive dividends similar to shares of Common Stock and common partnership units prior to vesting and our TSR long-term incentive partnership units receive a percentage of the distributions paid to common partnership units prior to vesting. These dividends and distributions are not forfeited if the awards fail to vest. Therefore, the unvested shares and units related to these awards are participating securities. The effect of participating securities is included in basic and diluted earnings per share and unit computations using the two-class method of allocating distributed and undistributed earnings when the two-class method is more dilutive than the treasury method. There were 0.3 million and 0.2 million unvested participating securities at March 31,as of September 30, 2018 and 2017, respectively.

The Aimco Operating Partnership has various classes of preferred OP Units, which may be redeemed at the holders’ option. The Aimco Operating Partnership may redeem these units for cash, or at its option, shares of Common Stock. As of March 31,September 30, 2018, these preferred OP Units were potentially redeemable for approximately 2.52.3 million shares of Common Stock (based on the period end market price), or cash. The Aimco Operating Partnership has a redemption policy that requires cash settlement of redemption requests for the preferred OP Units, subject to limited exceptions. Accordingly, we have excluded these securities from earnings per share and unit computations and we expect to exclude them in future periods.
Note 6 — Fair Value Measurements
Recurring Fair Value Measurements
We measure at fair value on a recurring basis our investments in the securitization trust that holds certain of our property debt, which we classify as available for sale, (or AFS)or AFS, debt securities, and our interest rate swaps, both of which are classified within Level 2 of the GAAP fair value hierarchy.
Our investments in debt securities classified as AFS are presented within other assets in the accompanying condensed consolidated balance sheets. We hold several positions in the securitization trust that pay interest currently and we also hold the first loss position in the securitization trust, which accrues interest over the term of the investment. We are accreting the discount to the $100.9 million face value of the investments into interest income using the effective interest method over the remaining term of the investments, which, as of March 31,September 30, 2018, was approximately 3.22.7 years. Our amortized cost basis for these investments, which represents the original cost adjusted for interest accretion less interest payments received, was $79.1$82.1 million and $77.7 million at March 31,September 30, 2018 and December 31, 2017, respectively. We estimated the fair value of these investments to be $83.6$87.0 million and $82.8 million at March 31,September 30, 2018 and December 31, 2017, respectively.
We estimate the fair value of these investments using an income and market approach with primarily observable inputs, including yields and other information regarding similar types of investments, and adjusted for certain unobservable inputs specific to these investments. The fair value of the positions that pay interest currently typically moves in an inverse relationship with movements in interest rates. The fair value of the first loss position is primarily correlated to collateral quality and demand for similar subordinate commercial mortgage-backed securities.
CertainPrior to the July 2018 sale of our Asset Management business, we consolidated certain partnerships served by our Asset Management business havebusiness. These partnerships entered into interest rate swap agreements whichto limit exposure to interest rate risk on the partnerships’ debt by effectively converting the interest from a variable rate to a fixed rate. We estimateestimated the fair value of interest rate swaps as of September 30, 2017, using an income approach with primarily observable inputs, including information regarding the hedged variable cash flows and forward yield curves relating to the variable interest rates on which the hedged cash flows are based.

The fair value of these interest rate swaps was classified within Level 2 of the GAAP fair value hierarchy.
The following table sets forth a summary of the changes in fair value of these interest rate swaps (in thousands):
Three Months Ended March 31,Nine Months Ended September 30,
2018 20172018 2017
Beginning balance$(1,795) $(3,175)$(1,795) $(3,175)
Unrealized losses included in interest expense
 (12)
Realized losses included in interest expense404
 73
Realized losses on derecognition of interest rate swaps1,115
 273
Losses on interest rate swaps reclassified into interest expense from accumulated other comprehensive loss119
 386
276
 1,076
Unrealized gains (losses) included in equity and partners’ capital419
 (10)
Unrealized losses included in equity and partners’ capital
 (280)
Ending balance$(1,257) $(2,811)$
 $(2,033)
AsFor the nine months ended September 30, 2018, realized losses on derecognition of March 31, 2018 and December 31, 2017, the interest rate swaps had aggregate notional amounts of $21.8 million and $22.0 million, respectively. As of March 31, 2018, these swaps had a weighted average remaining term of 5.7 years. We have designated theseincluded in earnings represents previously unrealized losses related to interest rate swaps as cash flow hedges. The fair valueto which certain partnerships served by our Asset Management business were parties. Upon sale of these swaps is presented within accrued liabilities and other (Asset Management) in our condensed consolidated balance sheets, and we recognize any changes inAsset Management business, the fair value as an adjustment of accumulated other comprehensive loss within equity and partners’ capitalincome related to the extent of their effectiveness.
If the forward rates at March 31, 2018, remain constant, we estimate that during the next 12 months, we would reclassify into earnings approximately $0.4 millionswaps was realized as a component of the unrealizedgain on disposition. Please refer to Note 3 for further discussion of this transaction.
For the nine months ended September 30, 2017, realized losses in accumulated other comprehensive loss. If market interest rates increase above the 3.26% weighted average fixed rate under theseon derecognition of interest rate swaps the consolidated partnerships will benefit from net cash payments due from the counterpartyincluded in earnings represents previously unrealized losses related to thean interest rate swaps.swap to which the partnership owning the final Napico property was a party, as described in Note 11 to our consolidated financial statements included in Aimco’s and the Aimco Operating Partnership’s combined Annual Report on Form 10-K.
In connection with the anticipated third quarter sale of the Asset Management business, these obligations will be assumed by the purchaser.
Fair Value Disclosures
We believe that the carrying values of the consolidated amounts of cash and cash equivalents, receivables and payables approximate their fair values at March 31,September 30, 2018, and December 31, 2017, due to their relatively short-term nature and high probability of realization. The carrying value of the total indebtedness associated with our Real Estate portfolio approximated its estimated fair value at March 31,September 30, 2018 and December 31, 2017. We estimate the fair value of our consolidated debt using an income and market approach, including comparison of the contractual terms to observable and unobservable inputs such as market interest rate risk spreads, contractual interest rates, remaining periods to maturity, collateral quality and loan to value ratios on similarly encumbered apartment communities within our portfolio. We classify the fair value of debt within Level 3 of the GAAP valuation hierarchy based on the significance of certain of the unobservable inputs used to estimate its fair value.
Note 7 — Business Segments
Our chief executive officer, who is our chief operating decision maker, uses proportionate property net operating income to assess the operating performance of our apartment communities. Proportionate property net operating income is defined as our share of rental and other property revenue less our share of property operating expenses, including real estate taxes, for consolidated apartment communities we own and manage. Beginning in 2018, we exclude from rental and other property revenues the amount of utilities cost reimbursed by residents and reflect such amount as a reduction of the related utility expense within property operating expenses in our evaluation of segment results. In our condensed consolidated statements of operations, utility reimbursements are included in rental and other property revenues, in accordance with GAAP. The tables below have been revised to conform to this presentation.
Apartment communities are classified as either part of our Real Estate portfolio or, prior to the sale in July 2018, those owned through partnerships served by our Asset Management business. As of March 31,September 30, 2018, for segment performance evaluation, our Real Estate segment included 130129 consolidated apartment communities with 37,08636,339 apartment homes and excluded four apartment communities with 142 apartment homes that we neither manage nor consolidate.
AsPrior to the July 2018 sale of March 31, 2018, through our Asset Management business, we alsoconsolidated certain partnerships in which we held nominal ownership positions in consolidatedpositions. These partnerships that own 46 low-income housing tax credit apartment communities with 6,898 apartment homes.communities. Neither the results of operations nor the assets of these partnerships and apartment communities arewere quantitatively material; therefore, we have one reportable segment, Real Estate.

The following tables present the revenues, net operating income and income before gain on dispositions of our Real Estate segment on a proportionate basis (excludingand excluding amounts related to apartment communities sold as of March 31, 2018)September 30, 2018 for the three and nine months ended March 31,September 30, 2018 and 2017 (in thousands):
Real Estate 
Proportionate and Other
Adjustments (1)
 
Corporate and
Amounts Not
Allocated to Reportable
Segment (2)
 ConsolidatedReal Estate 
Proportionate and Other
Adjustments (1)
 
Corporate and
Amounts Not
Allocated to Reportable
Segment (2)
 Consolidated
Three Months Ended March 31, 2018:       
Three months ended September 30, 2018:       
Rental and other property revenues attributable to Real Estate$214,387
 $9,149
 $1,857
 $225,393
$222,856
 $8,926
 $2,266
 $234,048
Rental and other property revenues of partnerships served by Asset Management business
 
 18,808
 18,808

 
 5,022
 5,022
Tax credit and transaction revenues
 
 3,519
 3,519

 
 3,411
 3,411
Total revenues214,387
 9,149
 24,184
 247,720
222,856
 8,926
 10,699
 242,481
Property operating expenses attributable to Real Estate61,903
 8,631
 7,753
 78,287
62,863
 8,405
 6,986
 78,254
Property operating expenses of partnerships served by Asset Management business
 
 9,195
 9,195

 
 2,608
 2,608
Other operating expenses not allocated to reportable
segment (3)

 
 106,861
 106,861

 
 114,665
 114,665
Total operating expenses61,903
 8,631
 123,809
 194,343
62,863
 8,405
 124,259
 195,527
Operating income152,484
 518
 (99,625) 53,377
159,993
 521
 (113,560) 46,954
Other items included in income before gain on
dispositions (4)

 
 (8,011) (8,011)
 
 (15,122) (15,122)
Income before gain on dispositions$152,484
 $518
 $(107,636) $45,366
$159,993
 $521
 $(128,682) $31,832

Real Estate 
Proportionate and Other
Adjustments (1)
 
Corporate and
Amounts Not
Allocated to Reportable
Segment (2)
 ConsolidatedReal Estate 
Proportionate and Other
Adjustments (1)
 
Corporate and
Amounts Not
Allocated to Reportable
Segment (2)
 Consolidated
Three Months Ended March 31, 2017:       
Three months ended September 30, 2017:       
Rental and other property revenues attributable to Real Estate$199,400
 $14,174
 $11,654
 $225,228
$203,935
 $8,155
 $21,618
 $233,708
Rental and other property revenues of partnerships served by Asset Management business
 
 18,562
 18,562

 
 18,232
 18,232
Tax credit and transaction revenues
 
 2,691
 2,691

 
 2,695
 2,695
Total revenues199,400
 14,174
 32,907
 246,481
203,935
 8,155
 42,545
 254,635
Property operating expenses attributable to Real Estate58,528
 9,402
 11,696
 79,626
57,592
 7,609
 16,043
 81,244
Property operating expenses of partnerships served by Asset Management business
 
 9,198
 9,198

 
 8,872
 8,872
Other operating expenses not allocated to reportable
segment (3)

 
 99,868
 99,868

 
 105,314
 105,314
Total operating expenses58,528
 9,402
 120,762
 188,692
57,592
 7,609
 130,229
 195,430
Operating income140,872
 4,772
 (87,855) 57,789
146,343
 546
 (87,684) 59,205
Other items included in income before gain on
dispositions (4)

 
 (40,240) (40,240)
 
 (36,828) (36,828)
Income before gain on dispositions$140,872
 $4,772
 $(128,095) $17,549
$146,343
 $546
 $(124,512) $22,377
 Real Estate 
Proportionate and Other
Adjustments (1)
 
Corporate and
Amounts Not
Allocated to Reportable
Segment (2)
 Consolidated
Nine months ended September 30, 2018:       
Rental and other property revenues attributable to Real Estate$643,656
 $25,903
 $21,012
 $690,571
Rental and other property revenues of partnerships served by Asset Management business
 
 42,830
 42,830
Tax credit and transaction revenues
 
 6,987
 6,987
Total revenues643,656
 25,903
 70,829
 740,388
Property operating expenses attributable to Real Estate183,119
 24,337
 25,116
 232,572
Property operating expenses of partnerships served by Asset Management business
 
 20,865
 20,865
Other operating expenses not allocated to reportable
segment (3)

 
 337,259
 337,259
Total operating expenses183,119
 24,337
 383,240
 590,696
Operating income460,537
 1,566
 (312,411) 149,692
Other items included in income before gain on
dispositions (4)

 
 (65,560) (65,560)
Income before gain on dispositions$460,537
 $1,566
 $(377,971) $84,132

 Real Estate 
Proportionate and Other
Adjustments (1)
 
Corporate and
Amounts Not
Allocated to Reportable
Segment (2)
 Consolidated
Nine months ended September 30, 2017:       
Rental and other property revenues attributable to Real Estate$589,349
 $35,542
 $61,748
 $686,639
Rental and other property revenues of partnerships served by Asset Management business
 
 55,327
 55,327
Tax credit and transaction revenues
 
 8,242
 8,242
Total revenues589,349
 35,542
 125,317
 750,208
Property operating expenses attributable to Real Estate169,311
 25,505
 45,138
 239,954
Property operating expenses of partnerships served by Asset Management business
 
 26,458
 26,458
Other operating expenses not allocated to reportable
segment (3)

 
 307,096
 307,096
Total operating expenses169,311
 25,505
 378,692
 573,508
Operating income420,038
 10,037
 (253,375) 176,700
Other items included in income before gain on
dispositions (4)

 
 (116,691) (116,691)
Income before gain on dispositions$420,038
 $10,037
 $(370,066) $60,009
(1)Represents adjustments for the noncontrolling interests in consolidated real estate partnerships’ share of the results of consolidated apartment communities in our Real Estate segment, which are included in the related consolidated amounts, but excluded from proportionate property net operating income for our segment evaluation. Also includes the reclassification of utility reimbursements from revenues to property operating expenses for the purpose of evaluating segment results. Utility reimbursements are included in rental and other property revenues in our condensed consolidated statements of operations prepared in accordance with GAAP.
(2)Includes the operating results of apartment communities sold during the periods shown or held for sale at the end of the period, if any, and the operating results of apartment communities owned by consolidated partnerships served by our Asset Management business.business prior to its sale in July 2018. Corporate and Amounts Not Allocated to Reportable Segment also includes property management expenses and casualty gains and losses, which are included in consolidated property operating expenses and are not part of our segment performance measure.

casualty gains and losses (which are included in consolidated property operating expenses), which are not part of our segment performance measure.
(3)Other operating expenses not allocated to reportable segment consists of depreciation and amortization, general and administrative expenses and other operating expenses, which are not included in our measure of segment performance.
(4)Other items included in income before gain on dispositions primarily consists of interest expense and income tax benefit.
The assets of our reportable segment and the consolidated assets not allocated to our segment are as follows (in thousands):
March 31, 2018 December 31, 2017September 30, 2018 December 31, 2017
Real Estate$5,652,016
 $5,495,069
$5,861,647
 $5,391,816
Corporate and other assets (1)603,274
 583,971
323,374
 687,224
Total consolidated assets$6,255,290
 $6,079,040
$6,185,021
 $6,079,040
(1)Includes the assets not allocated to our reportable segment, primarily corporate assets, and as of consolidated partnerships served byDecember 31, 2017, assets of apartment communities and the Asset Management business, and apartment communitieswhich were sold as of March 31,September 30, 2018.
For the threenine months ended March 31,September 30, 2018 and 2017, capital additions related to our Real Estate segment totaled $76.7$241.6 million and $70.1$243.3 million, respectively.
Note 8 — Variable Interest Entities
Generally, a variable interest entity, or VIE, is a legal entity in which the equity investors do not have the characteristics of a controlling financial interest or the equity investors lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support. A limited partnership is considered a VIE when the majority of the limited partners unrelated to the general partner possess neither the right to remove the general partner without cause, nor certain rights to participate in the decisions that most significantly affect the financial results of the partnership. In determining whether we are the primary

beneficiary of a VIE, we consider qualitative and quantitative factors, including, but not limited to: which activities most significantly impact the VIE’s economic performance and which party controls such activities; the amount and characteristics of our investment; the obligation or likelihood for us or other investors to provide financial support; and the similarity with and significance to our business activities and the business activities of the other investors. Significant judgments related to these determinations include estimates about the current and future fair values and performance of real estate held by these VIEs and general market conditions.
Aimco consolidates the Aimco Operating Partnership, which is a VIE for which Aimco is the primary beneficiary. Aimco, through the Aimco Operating Partnership, consolidates all VIEs for which the Aimco Operating Partnership is the primary beneficiary.
All of the VIEs we consolidate own interests in one or more apartment communities. VIEs that own apartment communities we classify as part of our Real Estate segment are typically structured to generate a return for their partners through the operation and ultimate sale of the communities. We are the primary beneficiary in the limited partnerships in which we are the sole decision maker and have a substantial economic interest.
Certain partnerships served by our Asset Management business own interests in low-income housing tax credit apartment communities that are structured to provide for the pass-through of tax credits and tax deductions to their partners and are VIEs. We hold a nominal ownership position in these partnerships, generally one percent or less. As general partner in these partnerships, we are the sole decision maker and we receive fees and other payments in return for the asset management and other services we provide and thus share in the economics of the partnerships, and as such, we are the primary beneficiary of these partnerships. The table below summarizes information regarding VIEs consolidated by the Aimco Operating Partnership:
As described in Note 3, we sold our Asset Management business in July 2018, including the nominal ownership interest we held in partnerships served by this business.
March 31, 2018 December 31, 2017September 30, 2018 December 31, 2017
Real Estate portfolio:      
VIEs with interests in apartment communities13
 14
9
 14
Apartment communities owned by VIEs13
 14
9
 14
Apartment homes in communities owned by VIEs4,196
 4,321
3,592
 4,321
Consolidated partnerships served by the Asset Management business:   
Consolidated partnerships served by Asset Management business:   
VIEs with interests in apartment communities41
 49

 49
Apartment communities owned by VIEs31
 37

 37
Apartment homes in communities owned by VIEs4,879
 5,893

 5,893
Assets of the Aimco Operating Partnership’s consolidated VIEs must first be used to settle the liabilities of such consolidated VIEs. These consolidated VIEs’ creditors do not have recourse to the general credit of the Aimco Operating Partnership. Assets and liabilities of consolidated VIEs are summarized in the table below (in thousands):
March 31, 2018 December 31, 2017September 30, 2018 December 31, 2017
Real Estate portfolio:      
Assets      
Net real estate$530,382
 $529,898
$481,390
 $529,898
Cash and cash equivalents17,567
 16,111
13,193
 16,111
Restricted cash7,050
 4,798
7,295
 4,798
Liabilities      
Non-recourse property debt secured by Real Estate communities, net410,600
 412,205
339,278
 412,205
Accrued liabilities and other13,427
 10,623
17,096
 10,623
Consolidated partnerships served by the Asset Management business:   
Consolidated partnerships served by Asset Management business:   
Assets      
Real estate, net173,949
 215,580

 215,580
Cash and cash equivalents15,479
 15,931

 15,931
Restricted cash22,232
 30,107

 30,107
Liabilities      
Non-recourse property debt184,316
 220,356

 220,356
Accrued liabilities and other13,586
 20,241

 20,241


ITEM 2.Management’s Discussion and Analysis of Financial Condition and Results of Operations
Forward Looking Statements
The Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for forward-looking statements in certain circumstances. Certain information included in this Quarterly Report contains or may contain information that is forward-looking, within the meaning of the federal securities laws, including, without limitation, statements regarding: our ability to maintain current or meet projected occupancy, rental rate and property operating results; the effect of acquisitions, dispositions, redevelopments and developments; our ability to meet budgeted costs and timelines, and achieve budgeted rental rates related to our redevelopment and development investments; expectations regarding sales of our apartment communities and the use of proceeds thereof; and our ability to comply with debt covenants, including financial coverage ratios.
Actual results may differ materially from those described in these forward-looking statements and, in addition, will be affected by a variety of risks and factors, some of which are beyond our control, including, without limitation:
Real estate and operating risks, including fluctuations in real estate values and the general economic climate in the markets in which we operate and competition for residents in such markets; national and local economic conditions, including the pace of job growth and the level of unemployment; the amount, location and quality of competitive new housing supply; the timing of acquisitions, dispositions, redevelopments and developments; and changes in operating costs, including energy costs;
Financing risks, including the availability and cost of capital markets’ financing; the risk that our cash flows from operations may be insufficient to meet required payments of principal and interest; and the risk that our earnings may not be sufficient to maintain compliance with debt covenants;
Insurance risks, including the cost of insurance, natural disasters and severe weather such as hurricanes; and
Legal and regulatory risks, including costs associated with prosecuting or defending claims and any adverse outcomes; the terms of governmental regulations that affect us and interpretations of those regulations; and possible environmental liabilities, including costs, fines or penalties that may be incurred due to necessary remediation of contamination of apartment communities presently or previously owned by us.
In addition, our current and continuing qualification as a real estate investment trust involves the application of highly technical and complex provisions of the Internal Revenue Code and depends on our ability to meet the various requirements imposed by the Internal Revenue Code, through actual operating results, distribution levels and diversity of stock ownership.
Readers should carefully review our financial statements and the notes thereto, as well as the section entitled “Risk Factors” described in Item 1A of Apartment Investment and Management Company’s and AIMCO Properties, L.P.’s combined Annual Report on Form 10-K for the year ended December 31, 2017, and the other documents we file from time to time with the Securities and Exchange Commission.
As used herein and except as the context otherwise requires, “we,” “our” and “us” refer to Apartment Investment and Management Company (which we refer to as Aimco), AIMCO Properties, L.P. (which we refer to as the Aimco Operating Partnership) and their consolidated entities, collectively.
Certain financial and operating measures found herein and used by management are not defined under accounting principles generally accepted in the United States, or GAAP. These measures are defined and reconciled to the most comparable GAAP measures under the Non-GAAP Measures heading and include: Funds From Operations, Pro forma Funds From Operations, Adjusted Funds From Operations, Free Cash Flow, Economic Income, and the measures used to compute our leverage ratios.
Executive Overview
We are focused on the ownership, management, redevelopment and limited development of quality apartment communities located in someseveral of the largest markets in the United States.
Our principal financial objective is to provide predictable and attractive returns to our equity holders. We measure our currentlong-term total return using Economic Income, defined as Net Asset Value, or NAV, growth plus dividends. NAV is used by many investors because the value of company assets can be readily estimated, even for non-earning assets such as land or properties under development. NAV has the advantage of incorporating the investment decisions of thousands of real estate investors, enhancing comparability among companies that have differences in their accounting, and avoiding disparity that can result from application of GAAP to investment properties and various ownership structures. Some investors focus on multiples of Adjusted Funds From Operations, or AFFO, and Funds From Operations, or FFO. Our disclosure of AFFO, our long-term totalmeasure of current return, using

complements our focus on Economic Income. We also use Pro forma Funds From Operations, or Pro forma FFO, as a secondary measure of operational performance. Our business plan to achieve this principal financial objective is to:
operate our portfolio of desirable apartment homes with a high level of focus on customer selection and customer satisfaction and in an efficient manner that produces predictable and growing Free Cash Flow;

improve our portfolio of apartment communities, which is diversified both by geography and price point by selling apartment communities with lower projected Free Cash Flow internal rates of return and investing the proceeds from such sales through capital enhancements, redevelopment, limited development, and acquisitions with greater land value, higher expected rent growth, and projected Free Cash Flow internal rates of return in excess of those expected from communities sold;
use low levels of financial leverage, primarily in the form of non-recourse, long-dated, fixed-rate property debt and perpetual preferred equity, a combination which reduces our refunding and re-pricing risk and which provides a hedge against increases in interest rates; and
focus intentionally on a collaborative and productive culture based on respect for others and personal responsibility.
Our business is organized around five areas of strategic focus: operational excellence; redevelopment; portfolio management; balance sheet; and team and culture.
The results from the execution of our business plan during the three months ended March 31,September 30, 2018, are further described below.
Net income attributable to common stockholders per common share increased by $0.45 in$3.50 during the three months ended March 31,September 30, 2018 as compared to the same period in 2017, primarily due to higher gains on the sale of apartment communities and a higher tax benefit resulting from an intercompany transfer of assets related to the Asset Management business.
Pro forma FFOAFFO per share increased $0.02 or 3.4%, for the three months ended March 31,September 30, 2018, as compared to the same period in 2017. ThisReal Estate operations contributed to the increase consisted of:in AFFO, as follows:
$0.02 from Same Store property net operating income growth of 2.7%2.6%, driven by a 2.6%3.1% increase in revenue offset by a 2.1%4.5% increase in expenses; and
$0.010.06 from leasing activity related to renovated homes at Redevelopment communities, the second quarter 2017 reacquisition of a 47% interestredevelopment and recently acquired communities; offset by
($0.06) in the Palazzo communities, and the first quarter 2018 acquisition of Bent Tree Apartments (discussed below), offset in part by lower property net operating incomeAFFO from apartment communities sold in the last twelve months.
For the three months ended September 30, 2018, and 2017.
As comparedthe sale of the Asset Management business is estimated to 2017, higher legal costs and other factorshave reduced Pro forma FFO by $0.01.
The $0.02 increase year-over-year in Pro forma FFO per share plus $0.01 in lower capital replacement spending due to fewer apartment homes increased AFFO per share by $0.03, or 5.9%.$0.03.
Operational Excellence
We own and operate a portfolio of market rate apartment communities, diversified by both geography and price point, which we refer to as our Real Estate portfolio. At March 31,September 30, 2018, our Real Estate portfolio included 134133 apartment communities with 37,22836,481 apartment homes in which we held an average ownership of approximately 99%. This portfolio was divided about two thirds by value to our “Same Store” portfolio of stabilized apartment communities and about one third by value to “Other Real Estate,” which includes recently acquired communities and communities under redevelopment or development whose long-term financial contribution is not yet stabilized.
Our property operations team deliveredproduced solid results for our Real Estate portfolio for the three months ended March 31,September 30, 2018. Highlights include:
Same Store net operating income growth of 2.7% fordriven by the three months ended March 31, 2018 compared to 2017;factors discussed below;
Same Store rent increases on renewals and new leases averaged 4.9%4.2% and 0.4%2.2%, respectively, for a weighted average increase of 2.7%3.2%; and
Average daily occupancy of 96.3%, 30 basis points higher than the same period in 2017.

Redevelopment
Our second line of business is the redevelopment and limited development of apartment communities, where we expect to create value equal to 25% to 35% of our incremental investment by repositioning communities within our portfolio. We measure the rate and quality of financial returns by net asset value creation, an important component of Economic Income, our primary measure of long-term financial performance. We also undertake limited ground-up development when warranted by risk-adjusted investment returns, either directly or in connection with the redevelopment of an existing apartment community or, on a more limited basis, at a new location.community. When

warranted, we rely on the expertise and credit of a third-party developer familiar with the local market to limit our exposure to construction risk.
We invest to earn risk-adjusted returns in excess of those expected from the apartment communities sold in paired trades to fund the redevelopment or development. Of these two activities, we favor redevelopment because it permits adjustment ofto the scope and timing of spending to align with changing market conditions and customer preferences.
During the three months ended March 31,September 30, 2018, we invested $46.8$36.7 million in redevelopment and development. In Center City, Philadelphia, we continued construction onhave substantially completed redevelopment of the vacated fourth and final tower of Park Towne Place. Initial move-ins have occurred andDuring the three months ended September 30, 2018, average daily occupancy at the endthree completed towers was 89.1%. As of April, 31% ofSeptember 30, 2018, the three completed towers were 95% leased and the fourth tower was pre-leased.71% leased.
Construction is underway, on planWe also commenced the next phase of redevelopment at our Flamingo community, located in Miami Beach. This $30 million phase includes extensive redevelopment of retail, leasing, and on budget at Parc Mosaic, our $117.0 million, 226 apartment home community being developed oncommon areas, including major enhancements to the site of our former Eastpointe community in Boulder, Colorado. We expect Parc Mosaic will be available for occupancy in the summer of 2019.
Our total estimated net investment in our current redevelopments and developments is $432.8 million with a projected weighted average net operating income yield on these investments of 6.1%, assuming untrended rents. Of this total, $279.0 million has been funded. 2018 funding needs for our remaining redevelopment and development investment will be satisfied with proceeds from our planned sale of the Asset Management business and Hunters Point communities, discussed below.entryway.
During the three months ended March 31,September 30, 2018, we exercised our option to acquire approximately two acres of land adjacent to our 21 Fitzsimons community, located on the University of Colorado Anschutz Medical Campus, and broke ground on the development of a 253-apartment home community. We expect to invest approximately $87.0 million to construct the community, which is expected to be complete in the third quarter of 2020. We anticipate a stabilized net operating income yield in the low 6% range, driven by an 80% net operating income margin due to operational efficiencies derived from owning the adjacent 600 apartment homes, and a Free Cash Flow internal rate of return greater than 10%, resulting in value creation (defined as the amount by which the completed property value exceeds the pre-redevelopment value plus redevelopment spend) of more than 35%.
During the three months ended September 30, 2018, we leased 59145 apartment homes at our redevelopment communities. As of March 31,September 30, 2018, our exposure to lease-up at active redevelopment and development projectscommunities was approximately 527341 apartment homes, of which 20162 were in the fourth tower of Park Towne Place, and 215213 were being constructed at Parc Mosaic.Mosaic, and 66 were located in three other communities.
In October 2018, we commenced construction on the development of 58 rental townhomes on approximately four acres of land contiguous to our Elm Creek apartment community in Elmhurst, Illinois. Given the success five years ago of a similar project at the community, we opportunistically purchased an adjacent land parcel in 2017. We expect to achieve a projected stabilized net operating income yield of 7% and a Free Cash Flow internal rate of return of greater than 11% on this $35 million investment. We expect initial occupancy in the first quarter of 2020 and completion of construction in the second quarter of 2020.
Please see below under the Liquidity and Capital Resources – Redevelopment and Development heading for additional information regarding our redevelopment and development investment during the threenine months ended March 31, 2018September 30, 2018.
Portfolio Management
Our portfolio of apartment communities is diversified across “A,” “B,” and “C+” price points, averaging “B/B+” in quality, and is also diversified across someseveral of the largest markets in the U.S.United States. We measure the quality of our apartment communities in our Real Estate portfolio based on average rents of our apartment homes compared to local market average rents as reported by a third-party provider of commercial real estate performance and analysis. Under this rating system, we classify as “A” quality apartment communities those earning rents greater than 125% of the local market average; as “B” quality apartment communities those earning rents between 90% and 125% of the local market average; as “C+” quality apartment communities those earning rents greater than $1,100 per month, but lower than 90% of the local market average; and as “C” quality apartment communities those earning rents less than $1,100 per month and lower than 90% of the local market average. We classify as “B/B+” quality a portfolio that on average earns rents between 100% and 125% of the local market average rents where the portfolio is located. Although some companies and analysts within the multifamily real estate industry use apartment community quality ratings of “A,” “B” and “C,” some of which are tied to the local market rent averages, the metrics used to classify apartment community quality as well as the period for which the local market rents are calculated may vary from company to company. Accordingly, our rating system for measuring apartment community quality is neither broadly nor consistently used in the multifamily real estate industry.

As part of our portfolio strategy, we seek to sell up to 10% of our portfolio annually and to reinvest the proceeds from such sales in accretive uses such as capital enhancements, redevelopments, occasional development, and selective acquisitions with projected Free Cash Flow internal rates of return higher than expected from the communities being sold. Through this disciplined approach to capital recycling, since 2011, we have sold $4.2 billion in lower-rated apartment communities and we have significantly increased the quality and expected growth rate of our portfolio.
 Three Months Ended
 March 31,
 2018 2017
Average revenue per Aimco apartment home (1)$2,052
 $1,922
Portfolio average rents as a percentage of local market average rents113% 112%
Percentage A (1Q 2018 average revenue per Aimco apartment home $2,736)49% 51%
Percentage B (1Q 2018 average revenue per Aimco apartment home $1,797)35% 35%
Percentage C+ (1Q 2018 average revenue per Aimco apartment home $1,660)16% 14%
(1) Represents average monthly rental and other property revenues (excluding resident reimbursement of utility cost) divided by the number of occupied apartment homes multiplied by our ownership interest in the apartment community as of the end of the current period.

 Three Months Ended
 September 30,
 2018 2017
Average revenue per Aimco apartment home (1)$2,131
 $2,005
Portfolio average rents as a percentage of local market average rents113% 112%
Percentage A (3Q 2018 average revenue per Aimco apartment home $2,809)51% 53%
Percentage B (3Q 2018 average revenue per Aimco apartment home $1,854)33% 34%
Percentage C+ (3Q 2018 average revenue per Aimco apartment home $1,702)16% 13%
(1) Represents average monthly rental and other property revenues (excluding resident reimbursement of utility cost) divided by the number of occupied apartment homes as of the end of the current period.
Our average revenue per apartment home was $2,052$2,131 for first quarterthe three months ended September 30, 2018, a 7%6% increase compared to first quarter 2017. This increase is due to year-over-year growth in Same Store revenue as well as our second quarter 2017 reacquisition of the 47% interest in the Palazzo communities,acquisition activities, lease-up of redevelopment and acquisition properties,communities, and the sale of apartment communities with average monthly revenues per apartment home lower than those of the retained portfolio.
As we execute our portfolio strategy, we expect to increase average revenue per Aimco apartment home at a rate greater than market rent growth; increase Free Cash Flow margins; and maintain sufficient geographic and price point diversification to limit volatility and concentration risk.
Apartment Community Acquisitions
We evaluate potential acquisitions with an eye for unique and opportunistic investments and fund acquisitions pursuant to our strict paired trade discipline.
During the threenine months ended March 31,September 30, 2018, we purchasedacquired five apartment communities. We acquired for $160.0$307.9 million Bent Tree Apartments, a 748-apartment home community in Fairfax County, Virginia. Bent Tree is a “B” quality community located in a market we know well from our ownership of two nearby communities built by the same developer. Further, we believe the same business plan used at these communities will produce greater than market rate net operating income growth for Bent Tree. The community is expected to achieve a 5.6% year one net operating income capitalization rate. Before consideration of capital enhancement opportunities, new lease rents are 4% higher than expiring leases, as compared to new lease rents that have decreased elsewhere in northern Virginia. We funded the acquisition with bank borrowings pending the expected third quarter sale of our Asset Management business, described below.
Subsequent to March 31, 2018, we entered into a transaction to acquire sixfour apartment communities in the Philadelphia area for a stated purchase price of $445.0 million. The portfolio includes 1,006 existing apartment homes, 110 apartment homes under construction, and 185,000 square feet of office and retail space. This “A” quality portfolio is located primarily in the Center City and University City submarkets of Philadelphia. We anticipate that our operation of the five operating communities will generate a year one net operating income yield of 5.3%, and for all six communities, average revenue per apartment home of $2,200 and a ten-year expected free cash flow internal rate of return of about 8%.
The $445.0 million acquisition will be funded initially through taking title subject to $290.0 million of non-recourse property debt, issuance of $90.0 million in common OP Units valued in the transaction at their estimated net asset value per unit (approximately 1.7 million common OP Units), and payment of $65.0 million in cash funded from bank borrowings. The ultimate paired trade funding includes the sale of Chestnut Hill Village, located in north Philadelphia, and the sale of the Asset Management business, described below.
On May 1, 2018, we completed the acquisition of four of the six apartments communities including 665 apartment homes and 153,000 square feet of office and retail space. We anticipatealso acquired for $160 million Bent Tree Apartments, a 748-apartment home community in Fairfax County, Virginia.
In April 2018, we agreed to acquire six communities in the acquisitionPhiladelphia area, including the four that have been acquired year-to-date. During the three months ended September 30, 2018, we terminated our agreement to acquire the fifth community, The Victor, in Camden, New Jersey, due to the lack of required approvals from the City of Camden. The purchase of the fifth apartmentsixth community during the summer of 2018 and the acquisition of the final apartment communityis expected upon completion of construction expected in the first half of 2019. The rate of return expected on our investment in the Philadelphia communities are not materially impacted by the removal of The Victor.
Apartment Community Dispositions
During the three months ended March 31,September 30, 2018, we sold three apartment communities with 513 apartment homes for a gain of $50.6 million, net of income tax, and gross proceeds of $71.9 million resulting in $64.6 million in net proceeds to us. Two of these communities are located in southern Virginia and one is located in suburban Maryland. Proceeds from these sales were used to repay outstanding borrowings on our revolving credit facility, effectively funding the equity portion of the Palazzo reacquisition as well as our 2017 redevelopment and development activities.
During the three months ended March 31, 2018, we sold our interests in the entities owning the La Jolla Cove property in settlement of legal actions filed in 2014 by a group of disappointed buyers who had hoped to acquire the property. We provided seller financing with a stated value of $48.6 million and received net cash proceeds of approximately $5.0 million in the sale.
In April 2018, we entered into a binding agreement to sell for $590.0$590 million our Asset Management business and four affordable apartment communities located in the four Hunters Point affordable communities. We expect to close this transaction during the third quarterarea of 2018.San Francisco. After payment of closingtransaction costs and repayment of property levelproperty-level debt encumbering the Hunters Point apartment communities, net proceeds are expected to be approximately $512.0us were $512.2 million.
During the three months ended September 30, 2018, we also sold for $170.4 million which we planChestnut Hill Village, an 821-apartment home community located in north Philadelphia. Net proceeds to use to: repayus were $165.5 million.
We used the borrowings on our credit facility usedproceeds from the two sales to fund 2018 acquisitions, effectively completing the paired trades. The sale of Chestnut Hill Village rebalanced our acquisition of Bent Tree Apartments and the acquisition of thecapital allocation to Philadelphia from a lower-rated apartment community in north Philadelphia to communities in the Philadelphia portfolio; reduce our overall leverage; fund 2018 redevelopment;more desirable Center City and redeem Aimco’s Class A Cumulative Preferred Stock, which is callableUniversity City submarkets. The acquisition communities have expected Free Cash Flow internal rates of return approximately 400 basis points higher than those of the disposition communities.
We used excess proceeds from the sales to repay in second quarter 2019. Taken together, these transactions are expected to reduce our AFFO by $0.03 per share and $0.04 per share in 2018 and 2019, respectively, before becoming accretive in 2021.

Balance Sheet
Our leverage includes our share of long-term, non-recourse property debt encumbering apartment communities in our Real Estate portfolio, our term loan, outstanding borrowings underfull our revolving credit facility and outstanding preferred equity. In our calculation of leverage, we exclude non-recourse property debt obligations of consolidated partnerships served by our Asset Management business, as these are not our obligationsterm loan, reduce property-level borrowings, and they have limited effect on the amount of fees and other amounts we expect to receive in our role as asset manager for these partnerships.general corporate purposes.

Balance Sheet
Our leverage strategy seeks to increase financial returns while using leverage with appropriate caution. We limit risk through balance sheet structure, employing low leverage, primarily non-recourse and long-dated property debt; build financial flexibility by maintaining ample unused and available credit as well as holding properties with substantial value unencumbered by property debt; and use partners’ capital when it enhances financial returns or reduces investment risk.
Our leverage includes our share of long-term, non-recourse, property debt encumbering apartment communities, outstanding borrowings under our revolving credit facility, and outstanding preferred equity.
We target the ratio of Proportionate Debt and Preferred Equity to Adjusted EBITDA to be below 7.0x and we target the ratio of Adjusted EBITDA to Adjusted Interest Expense and Preferred Dividends to be greater than 2.5x. Our leverage ratios for the three months ended March 31,September 30, 2018, are presented below:
Proportionate Debt to Adjusted EBITDA (1) 6.8x6.5x
Proportionate Debt and Preferred Equity to Adjusted EBITDA (1) 7.2x6.9x
Adjusted EBITDA to Adjusted Interest Expense 3.6x3.4x
Adjusted EBITDA to Adjusted Interest Expense and Preferred Dividends 3.2x3.1x
(1)Adjusted EBITDA has been adjusted on a pro forma basis to reflect our disposition of Chestnut Hill Village, the Asset Management business, and the four Hunters Point communities during the period as if the transactions had been closed on July 1, 2018.
We calculate Adjusted EBITDA and Adjusted Interest Expense used in our leverage ratios based on the most recent three month amounts, annualized. Our leverage ratios have been calculated on a pro forma basis to reflect the acquisition of Bent Tree Apartments and the disposition of three apartment communities during the period as if the transactions had closed on January 1, 2018. As used in the ratios above, Preferred Equity represents Aimco’s preferred stock and the Aimco Operating Partnership’s preferred OP Units.
Future improvement in leverage metrics is expected from the repayment of bank borrowings and property level debt with the proceeds from our expected third quarter sale of the Asset Management business and the Hunters Point communities. We also expect to use the proceeds from this sale to redeem Aimco’s Class A Cumulative Preferred Stock, which is callable in second quarter 2019. We expect our Proportionate Debt to Adjusted EBITDA and Proportionate Debt and Preferred Equity to Adjusted EBITDA ratios to decrease by the end of 2018 to 6.3x and 6.7x, respectively.respectively, before year-end.
As of June 30, 2018, we had $1.6 billion of property-level debt scheduled to mature between 2019 and 2021 and $125 million of 6.875% preferred stock callable in 2019. During the three months ended March 31,September 30, 2018, we closed tworepaid $120 million of the property-level debt. We intend to redeem the preferred stock in May 2019. We are addressing the majority of these remaining maturities and have rate-locked $620 million of non-recourse, property loans: $500 million of these loans are fixed-rate property loans totaling $242.0 million. These loans have 10-year termswith a weighted average maturity of nine years and a weighted average interest rate of 3.48%4.17%, 126and $120 million of these loans have five-year terms and interest rates floating at a weighted average of 115 basis points aboveover 30-day LIBOR. In connection with the corresponding treasury ratesexpected refinancing activity, we expect to incur approximately $14 million of debt extinguishment costs.
In October 2018, we repurchased 1.7 million shares of our common stock for a total of $75 million, at the time of pricing. The net effect of 2018 fixed-rate property debt refinancing activities has been to lower oura weighted average fixed interest rate by nearly 10 basis points since Decemberprice of $43.89 per share, approximately a 20% discount to our March 31, 2017, to 4.55%, reducing prospective interest expense by more than $3.0 million.
We also closed two non-recourse, variable-rate property loans totaling $118.6 million. These loans each have a five-year term and bear interest at 30-day LIBOR plus 1.25%. The five-year terms fill a hole in our laddered maturities and, taken together with the planned repayment of the variable term loan, reduce our exposure to increasing short-term interest rates to less than 7% of our leverage.2018 estimated net asset value per share.
Our liquidity consists of cash balances and available capacity on our revolving line of credit. As of March 31,September 30, 2018, we had on hand $600.0 million in cash and restricted cash plus availableof $104.3 million and had the capacity onto borrow $592.9 million under our revolving linecredit facility, after consideration of $7.1 million of letters of credit backed by the facility. We use our credit facility primarily for working capital and other short-term purposes and to secure letters of credit.
We also manage our financial flexibility by maintaining an investment grade rating and holding apartment communities that are unencumbered by property debt. At March 31,September 30, 2018, we held unencumbered apartment communities with an estimated fair value of approximately $2.0$2.3 billion.
Two credit rating agencies rate our creditworthiness using different methodologies and ratios for assessing our credit, and both have rated our credit and outlook as BBB- (stable), an investment grade rating. Although some of the ratios they use are similar to those we use to measure our leverage, there are differences in our methods of calculation and therefore our leverage ratios disclosed above may not be indicative of the ratios that may be calculated by these agencies.
For additional information regarding our leverage, please see the discussion under the Liquidity and Capital Resources heading.

Team and Culture
Our team and culture are keys to our success. Our intentional focus on a collaborative and productive culture based on respect for others and personal responsibility is reinforced by a preference for promotion from within. We focus on succession planning and talent development to produce a strong, stable team that is the enduring foundation of our success. In 2018, we were recognized by the Denver Post as a Top Work Place for the sixth consecutive year, an accomplishment shared with only seven other companies in Colorado.
Key Financial Indicators
The key financial indicators we use in managing our business and in evaluating our operating performance are Economic Income, our measure of long-term total return, and Adjusted Funds From Operations, our measure of current return. In addition to these indicators, we evaluate our operating performance and financial condition using: Pro forma FFO; Free Cash Flow, or FCF;Flow; same store property net operating income; proportionate property net operating income; average revenue per effective apartment home; leverage ratios; and net leverage.
Results of Operations
Because our operating results depend primarily on income from our apartment communities, the supply of and demand for apartments influences our operating results. Additionally, the level of expenses required to operate and maintain our apartment communities and the pace and price at which we redevelop, acquire and dispose of our apartment communities affect our operating results.
The following discussion and analysis of the results of our operations and financial condition should be read in conjunction with the accompanying condensed consolidated financial statements included in Item 1.
Three and Nine Months Ended March 31,September 30, 2018 compared to March 31,September 30, 2017
Net income attributable to Aimco increased by $70.1$550.4 million and increased by $607.4 million, respectively, during the three and nine months ended March 31,September 30, 2018 as compared to 2017. Net income attributable to the Aimco Operating Partnership increased by $73.3$579.7 million and $639.3 million, respectively, during the three and nine months ended March 31,September 30, 2018 as compared to 2017. The increasefollowing discussion describes the primary drivers of the changes in the net income forattributable to Aimco and the Aimco Operating Partnership was due primarilyfor the three and nine months ended September 30, 2018 compared to a $50.3 million gain on the disposition of real estate and a $32.4 million increase in tax benefit resulting from an intercompany transfer of assets related to the Asset Management business.
The following paragraphs discuss these and other items affecting the results of operations of Aimco and the Aimco Operating Partnership in more detail.2017.
Property Operations
As described under the preceding Executive Overview heading, our Real Estate segmentportfolio consists primarily of market rate apartment communities in which we hold a substantial equity ownership interest.
We use proportionate property net operating income to assess the operating performance of our Real Estate Portfolio. Proportionate property net operating income reflects our share of rental and other property revenues less direct property operating expenses, including real estate taxes, for consolidated apartment communities we manage. Accordingly, the results of operations of our Real Estate segment discussed below are presented on a proportionate basis and exclude the results of four apartment communities with 142 apartment homes that we neither manage nor consolidate.
Additionally, we evaluate the revenue and expense performance of our segment as adjusted for utility reimbursements. Nearly two-thirds of our utility costs are reimbursed by residents. These reimbursements are included in rental and other property revenues in our condensed consolidated statements of operations prepared in accordance with GAAP, but beginning in 2018, our segment results below reflect utility reimbursements as a reduction of the corresponding expense. We have revised the 2017 amounts to conform to this presentation.
We do not include offsite costs associated with property management or casualty-related amounts in our assessment of segment performance. Accordingly, these items are not allocated to our segment results discussed below.
Refer to Note 7 in the condensed consolidated financial statements in Item 1 for further discussion regarding our reportable segments,segment including a reconciliation of these proportionate amounts to the corresponding amounts in our condensed consolidated statements of operations.

Real Estate Proportionate Property Net Operating Income
We classify apartment communities within our Real Estate segment as Same Store and Other Real Estate. Same Store communities are those that have reached a stabilized level of operations as of the beginning of a two-year comparable period and maintained it throughout the current and comparable prior periods, and are not expected to be sold within 12 months. Other Real

Estate includes apartment communities that do not meet the Same Store definition, including, but not limited to: redevelopment and development apartment communities, which are those currently under construction that have not achieved a stabilized level of operations and those that have been completed in recent years that have not achieved and maintained stabilized operations for both the current and comparable prior year; acquisition apartment communities, which are those we have acquired since the beginning of a two-year comparable period; and communities that we expect to sell within 12 months but do not yet meet the criteria to be classified as held for sale.
As of March 31,September 30, 2018, our Real Estate segment consisted of 95 Same Store apartment communities with 26,367 apartment homes and 3534 Other Real Estate communities with 10,7199,972 apartment homes.
From December 31, 2017 to March 31,September 30, 2018, on a net basis, our Same Store portfolio increased by three apartment communities and decreased by 19 apartment homes. These changes consisted of:
the addition of one developed apartment community with 91 apartment homes and one redeveloped apartment community with 104 apartment homes that were classified as Same Store upon maintaining stabilized operations for the entirety of the periods presented;
the addition of one acquired apartment community with 115 apartment homes that was classified as Same Store because we have now owned it for the entirety of both periods presented;
the addition of one apartment community with 492 apartments homes that we no longer expect to sell within 12 months; and
the reduction of one apartment community with 821 apartment homes, which is expected to bewas sold within 12 months, but does not yet meet the criteria to be classified as held for sale.of September 30, 2018.
As of March 31,September 30, 2018, our Other Real Estate communities included:
13 apartment communities with 6,2806,293 apartment homes in redevelopment or development;
26 apartment communities with 1,2111,876 apartment homes recently acquired; and
2015 apartment communities 3,228with 1,803 apartment homes that do not meet the definition of Same Store because they are either subject to agreements that limit the amount by which we may increase rents receive forms of government rental assistance, or have not reached or maintained a stabilized level of occupancy as of the beginning of a two-year comparable period, often due to a casualty event.
Our Real Estate segment results for the three months ended March 31,September 30, 2018 and 2017, as presented below, are based on the apartment community populations as of March 31,September 30, 2018.
Three Months Ended March 31,Three Months Ended September 30,    
(in thousands)2018 2017 $ Change % Change2018 2017 $ Change % Change
Rental and other property revenues before utility reimbursements:              
Same Store communities$144,854
 $141,220
 $3,634
 2.6%$148,877
 $144,441
 $4,436
 3.1%
Other Real Estate Communities69,533
 58,180
 11,353
 19.5%
Other Real Estate communities73,979
 59,494
 14,485
 24.3%
Total214,387
 199,400
 14,987
 7.5%222,856
 203,935
 18,921
 9.3%
Property operating expenses, net of utility reimbursements:              
Same Store communities38,923
 38,110
 813
 2.1%39,034
 37,352
 1,682
 4.5%
Other Real Estate Communities22,980
 20,418
 2,562
 12.5%
Other Real Estate communities23,829
 20,240
 3,589
 17.7%
Total61,903
 58,528
 3,375
 5.8%62,863
 57,592
 5,271
 9.2%
Proportionate property net operating income:              
Same Store communities105,931
 103,110
 2,821
 2.7%109,843
 107,089
 2,754
 2.6%
Other Real Estate Communities46,553
 37,762
 8,791
 23.3%
Other Real Estate communities50,150
 39,254
 10,896
 27.8%
Total$152,484
 $140,872
 $11,612
 8.2%$159,993
 $146,343
 $13,650
 9.3%
For the three months ended March 31,September 30, 2018 compared to 2017, our Real Estate segment’s proportionate property net operating income increased $11.6$13.7 million, or 8.2%9.3%.
Same Store proportionate property net operating income increased by $2.8 million, or 2.7%2.6%. This increase was primarily attributable to a $3.6$4.4 million, or 2.6%3.1%, increase in rental and other property revenues due to higher average revenues ($42of $53 per Aimco apartment home),home comprised primarily of increases in rental rates.rates and a 30 basis point increase in average daily occupancy. Renewal

rents, (thewhich is the rent paid by an existing resident who renewed hera lease compared to the rent she previously paid)paid prior to renewal, were up 4.9%4.2% for the three months ended March 31,September 30, 2018, and new lease rents, (thewhich is the rent paid by a new resident compared to the rent paid by the previous resident of the same apartment home)home, were up 0.4%2.2%, resulting in a weighted average increase of 2.7%3.2%. The increase in Same Store rental and other property revenues was partially offset by a $0.8$1.7 million, or 2.1%4.5%, increase in property operating expenses primarily due to an increaserepairs and maintenance costs and increases in real estate taxes. During the three months ended March 31,September 30, 2018 compared to 2017, controllable operating expenses, which exclude utility costs, real estate taxes and insurance, increased by $0.3$1.1 million, or 1.4%5.6%.
The proportionate property net operating income of Other Real Estate communities increased by $8.8$10.9 million, or 23.3%27.8%, for the three months ended March 31,September 30, 2018 compared to the same period in 2017 primarily due to:
a $2.5an $8.4 million increase in property net operating income due to the lease-up of Indigo and the 2018 acquisitionacquisitions of Bent Tree Apartments;Apartments and the four Philadelphia communities as well as the stabilization of Indigo located in Redwood City, California; and
a $1.9$2.1 million increase in property net operating income due to leasing activities at redevelopment and development communities, partially offset by decreases due to apartment homes taken out of service for development;redevelopment and development.
 Nine Months Ended September 30,    
(in thousands)2018 2017 $ Change % Change
Rental and other property revenues before utility reimbursements:       
Same Store communities$440,681
 $428,028
 $12,653
 3.0%
Other Real Estate communities202,975
 161,321
 41,654
 25.8%
Total643,656
 589,349
 54,307
 9.2%
Property operating expenses, net of utility reimbursements:       
Same Store communities116,453
 112,725
 3,728
 3.3%
Other Real Estate communities66,666
 56,586
 10,080
 17.8%
Total183,119
 169,311
 13,808
 8.2%
Proportionate property net operating income:       
Same Store communities324,228
 315,303
 8,925
 2.8%
Other Real Estate communities136,309
 104,735
 31,574
 30.1%
Total$460,537
 $420,038
 $40,499
 9.6%
For the nine months ended September 30, 2018 compared to 2017, our Real Estate segment’s proportionate property net operating income increased $40.5 million, or 9.6%.
Same Store proportionate property net operating income increased by $8.9 million, or 2.8%. This increase was primarily attributable to a $12.7 million, or 3.0%, increase in rental and other property revenues due to higher average revenues of approximately $50 per effective home, comprised primarily of increases in rental rates and a 30 basis point increase in average daily occupancy. Renewal rents, which is the rent paid by an existing resident who renewed a lease compared to the rent paid prior to renewal, were up 4.6% for the nine months ended September 30, 2018, and new lease rents, which is the rent paid by a new resident compared to the rent paid by the previous resident of the same apartment home, were up 1.7%, resulting in a weighted average increase of 3.2%. The increase in Same Store rental and other property revenues was partially offset by a $3.7 million, or 3.3%, increase in property operating expenses, primarily due to increase in real estate taxes and repairs and maintenance costs. During the nine months ended September 30, 2018 compared to 2017, controllable operating expenses, which exclude utility costs, real estate taxes and insurance, increased by $1.9 million, or 3.2%.
The proportionate property net operating income of our Other Real Estate communities increased by $31.6 million, or 30.1% for the nine months ended September 30, 2018 compared to 2017, due to:
a $16.3 million increase in property net operating income due to the 2018 acquisition of Bent Tree Apartments and the four Philadelphia properties as well as the stabilization of Indigo;
a $6.0 million increase in property net operating income due to leasing activities at redevelopment and development communities, partially offset by decreases due to apartment homes taken out of service for redevelopment; and

higher property net operating income of $4.4$8.5 million from other communities, includingprimarily the effect of our increased ownership interest in the Palazzo communities from our June 2017 reacquisition of thea 47% limited partner interest in the related joint venture.
Non-Segment Real Estate Operations
Operating income amounts not attributed to our Real Estate segment include offsite costs associated with property management, casualty losses, and the results of apartment communities sold, reported in consolidated amounts, which we do not allocate to our Real Estate segment for purposes of evaluating segment performance (see Note 7 to the condensed consolidated financial statements in Item 1).
For the three months ended March 31,September 30, 2018, casualty losses totaled $1.1$0.8 million and included several minor claims. For the three months ended September 30, 2017, casualty losses totaled $2.8 million and included several large claims primarily related to waterhurricane damage.
For the nine months ended September 30, 2018, casualty losses totaled $2.4 million and included several claims primarily related to winter storm damage, partially offset by recovery from insurance carriers for insured losses in excess of policy limits. For the threenine months ended March 31,September 30, 2017, casualty losses totaled $1.9$7.1 million and included several large claims primarily related to fire damage and water damage resulting from heavy rains in California.Hurricane Irma.
Net operating income decreased for the three and nine months ended March 31,September 30, 2018 compared to 2017, by $6.5$12.4 million and $25.9 million, respectively, due to apartment communities previously in our Real Estate portfolio that were sold as of March 31,September 30, 2018.
Asset Management Results
Prior to the July 2018 sale of our Asset Management business, we provided asset management and other services to certain consolidated partnerships owning apartment communities that qualify for low-income housing tax credits and are structured to provide for the pass-through of tax credits and tax deductions to their partners.
Contribution from Asset Management in our condensed consolidated financial statements included: fees and other amounts paid to us from the net operating income of partnerships served by our Asset Management business, less interest expense incurred on non-recourse property debt obligations of the partnerships; income associated with delivery of tax credits to the third-party investors in the partnerships; and transactional revenue and other income less asset management expenses, which included certain allocated offsite costs related to the operation of this business.
For the three and nine months ended September 30, 2018 compared to 2017, contribution from Asset Management decreased due to the July 2018 sale of our Asset Management business.
Depreciation and Amortization
For the three and nine months ended March 31,September 30, 2018 compared to 2017, depreciation and amortization increased $5.4$3.9 million, or 6.2%4.2%, and $17.6 million, or 6.5%, respectively, primarily due to apartment homes acquired in 2018 and renovated apartment homes placed in service after their completion, partially offset by decreases associated with apartment communities sold.
General and Administrative Expenses
For the three and nine months ended September 30, 2018, compared to 2017, general and administrative expenses increased $2.0 million, or 18.5%, and $5.6 million, or 17.7%, respectively, primarily due to the timing of incentive compensation costs, legal and consulting fees, and travel expenses.
Other Expenses, net
Other expenses, net includes costs associated with our risk management activities, partnership administration expenses and certain non-recurring items.
For the three and nine months ended September 30, 2018 compared to 2017, other expenses increased by $3.5 million and $7.0 million, respectively, primarily due to higher legal costs associated with our ongoing litigation against Airbnb to protect our property right to select our residents and their neighbors and severance costs incurred during the three months ended September 30, 2018, offset by a reduction in other legal costs.

Interest Income
For the three and nine months ended September 30, 2018 compared to 2017, interest income increased $0.7 million and $1.5 million, respectively, primarily due to interest earned on the seller financing notes received as consideration in the sale of La Jolla Cove.
Interest Expense
For the three and nine months ended March 31,September 30, 2018 compared to 2017, interest expense, which includes the amortization of debt issuance costs, decreased by $0.1$5.2 million, or 0.2%10.2%, and $2.2 million, or 1.5%, respectively. The decrease wasdecreases were primarily due to lower average outstanding balances on non-recoursethe repayment of our term loan and borrowings against our credit facility and certain property level debt resultingwith proceeds from principal amortization, principal repayments and refinancing property loans at lower rates, largelythe sale of our Asset Management business, partially offset by higher amounts outstandinginterest on corporate borrowings used to funddebt assumed with the 2018 acquisition of Bent Tree Apartments.Philadelphia portfolio acquisition.
Income Tax Benefit
Certain of our operations, including property management and risk management, are conducted through taxable REIT subsidiaries, or TRS entities. Additionally, some of our apartment communities are owned through TRS entities.
Our income tax benefit calculated in accordance with GAAP includes: (a) income taxes associated with the income or loss of our TRS entities, for which the taxestax consequences have been realized or will be realized in future periods; (b) low income housing tax credits generated prior to the sale of our Asset Management business and four Hunters Point apartment communities that offset REIT taxable income, primarily from retained capital gains; and (c) historic tax credits that offset income tax obligations of our TRS entities. Income taxes related to these items (before gains on dispositions), as well as changes in valuation allowance and the establishment of incremental deferred tax items in conjunction with intercompany asset transfers (if applicable), are included in income tax benefit in our condensed consolidated statements of operations.

For the three and nine months ended March 31,September 30, 2018 compared to 2017, income tax benefit increased by $32.4$23.1 million and $54.8 million, respectively. Income tax benefit increased during the three months ended primarily due to the release of a previously established valuation allowance as a result of the sale of the Asset Management business. Income tax benefit increased during the nine months ended September 30, 2018, primarily due to a tax benefit recognized in connection with an intercompany transfer of assets related to theour Asset Management business. This tax benefit is offset slightly by lower historic tax credits generated throughbusiness and the redevelopmentrelease of certain apartment communities.the valuation allowance.
Gain on Dispositions of Real Estate and the Asset Management Business, Inclusive of Related Income Tax
Real Estate
During the three months ended March 31,September 30, 2018, we sold three apartment communities with 513 apartment homesfor $170 million Chestnut Hill Village, an 821-apartment community located in north Philadelphia for a gain of $50.6$122.6 million, net of income tax, and gross proceeds of $71.9$170.4 million, resulting in $64.6$165.5 million in net proceeds to us. During the nine months ended September 30, 2018, we sold four apartment communities with 1,334 apartment homes for a gain of $173.2 million, net of income tax, and gross proceeds of $242.3 million, resulting in $230.1 million in net proceeds to us.
We did not sell any apartment communities from our Real Estate portfolio during the nine months ended September 30, 2017.
During the three months ended March 31, 2017.September 30, 2018, we also sold four affordable communities located in the Hunters Point area of San Francisco in connection with our sale of our Asset Management business described below.
Asset Management
During the three months ended September 30, 2018, we sold for $590.0 million our Asset Management business and our four Hunters Point communities for a gain of $448.2 million, net of income tax. After payment of transaction costs and repayment of property-level debt encumbering the Hunters Point apartment communities, net proceeds to us were $512.2 million.
Consolidated partnerships served by our Asset Management business did not sell any apartment communities during the three months ended March 31, 2018.September 30, 2017. During the threenine months ended March 31,September 30, 2017, a consolidated partnership served by our Asset Management businesspartnerships sold antwo apartment community with 52 apartment homescommunities for a gain of $0.6 million and gross proceeds of $2.4$10.9 million, resulting in $0.4a gain on disposition of real estate of $2.6 million in net proceeds.and related tax expense of $0.9 million.

Noncontrolling Interests in Consolidated Real Estate Partnerships
Noncontrolling interests in consolidated real estate partnerships reflects the results of our consolidated real estate partnerships allocated to the owners who are not affiliated with Aimco. The amounts of income or loss of our consolidated real estate partnerships that we allocate to owners not affiliated with Aimco include their share of property management fees, interest on notes and other amounts that we charge to these partnerships.
For the three months ended March 31, 2018 and 2017, we allocated net income of $6.2 million and $1.0 million, respectively, to noncontrolling interests in consolidated real estate partnerships. The amount of net income allocated to noncontrolling interests was driven by two primary factors: the operations of the consolidated apartment communities and gains on the sale of apartment communities with noncontrolling interest holders, as further discussed below.
For the three months ended September 30, 2018 and 2017, we allocated net income of $1.8 million and net loss of $0.2 million, respectively, to noncontrolling interests in consolidated real estate partnerships.
The allocation to noncontrolling interests resulting from operations of the consolidated apartment communities was $0.1 million of income for the three months ended September 30, 2018, and $0.2 million of loss for the three months ended September 30, 2017.
Gains on the sale of apartment communities allocated to noncontrolling interests totaled $1.7 million for the three months ended September 30, 2018 and there were no gains to allocate in the three months ended September 30, 2017.
For the nine months ended September 30, 2018 and 2017, we allocated net income of $8.0 million and $1.5 million, respectively, to noncontrolling interests in consolidated real estate partnerships.
The amount of net income allocated to noncontrolling interests resulting from operations of the consolidated apartment communities was $0.1$0.2 million and $1.0$1.5 million for the threenine months ended March 31,September 30, 2018 and 2017, respectively. The decrease iswas primarily due to the June 2017 reacquisition of our limited partner’s interests in the Palazzo joint venture.
Gains on the sale of apartment communities allocated to noncontrolling interests totaled $6.1$7.8 million for the threenine months ended March 31,September 30, 2018, and there waswere no suchgains to allocate in the nine months ended September 30, 2017.
Noncontrolling Interests in Aimco Operating Partnership
In Aimco’s consolidated financial statements, noncontrolling interests in the Aimco Operating Partnership reflects the results of the Aimco Operating Partnership that are allocated to the OP Unit holders. For the three and nine months ended September 30, 2018 compared to 2017, net income allocated to noncontrolling interests in the Aimco Operating Partnership increased $29.4 million and $31.9 million, respectively. Allocations to noncontrolling interests in the Aimco Operating Partnership fluctuate in proportion to variations in net income, as described above. The allocation of net income to noncontrolling interests in the Aimco Operating Partnership increased due to the issuance of OP Units as partial consideration for the three months ended March 31, 2017.acquisition of the four Philadelphia properties, discussed further in Note 3 to the condensed consolidated financial statements in Item 1.
Critical Accounting Policies and Estimates
We prepare our condensed consolidated financial statements in accordance with GAAP, which requires us to make estimates and assumptions. We believe that the critical accounting policies that involve our more significant judgments and estimates used in the preparation of our condensed consolidated financial statements relate to the impairment of long-lived assets and capitalized costs.
Our critical accounting policies are described in more detail in Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations, of Aimco’s and the Aimco Operating Partnership’s combined Annual Report on Form 10-K for the year ended December 31, 2017. There have been no significant changes in our critical accounting policies from those reported in our Form 10-K and we believe that the related judgments and assessments have been consistently applied and produce financial information that fairly depicts the financial condition, results of operations, and cash flows for all periods presented.

Non-GAAP Measures
Various of the key financial indicators we use in managing our business and in evaluating our financial condition and operating performance are non-GAAP measures. Key non-GAAP measures we use are defined and described below, and for those non-GAAP measures used or disclosed within this quarterly report, reconciliations of the non-GAAP measures to the most comparable financial measure computed in accordance with GAAP are provided.

Economic Income represents stockholder value creation as measured by the per share change in estimated net asset value plus cash dividends. We believe Economic Income is important to investors as it represents a measure of the total return we have earned for our stockholders. We report and reconcile Economic Income annually. Please refer to the section entitled Management’s Discussion and Analysis of Financial Condition and Results of Operations described in Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2017, for more information about Economic Income.
Funds From Operations, or FFO, Pro forma FFO and AFFO are non-GAAP financial measures, which are defined and further described below under the Funds From Operations, Pro Formaforma Funds From Operations and Adjusted Funds From Operations heading.

Free Cash Flow, as calculated for our retained portfolio, represents an apartment community’s property net operating income, or NOI, less spending for capital replacements, which represents our estimation of the capital additions made to replace capital assets consumed during our ownership period (further discussed herein under the Funds From Operations, Pro Formaforma Funds From Operations and Adjusted Funds From Operations heading and the Liquidity and Capital Resources heading). Free Cash Flow margin, represents an apartment community’s NOI less $1,200 per apartment home of assumed annual capital replacement spending, as a percentage of the apartment community’s rental and other property revenues. Capital replacement spending represents a measure of the cost of capital asset usage during the period; therefore, we believe that Free Cash Flow is useful to investors as a supplemental measure of apartment community performance because it takes into consideration costs incurred during the period to replace capital assets that have been consumed during our ownership.
Economic Income represents stockholder value creation as measured by the change in estimated net asset value per share plus cash dividends per share. We believe Economic Income is important to investors as it represents a measure of the total return we have earned for our stockholders. We report and reconcile Economic Income annually. Readers should refer to the section entitled Management’s Discussion and Analysis of Financial Condition and Results of Operations described in Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2017, for more information about Economic Income.
Funds From Operations, Pro Forma Funds From Operations and Adjusted Funds From Operations
FFO is a non-GAAP financial measure that we believe, when considered with the financial statements determined in accordance with GAAP, is helpful to investors in understanding our performance because it captures features particular to real estate performance by recognizing that real estate generally appreciates over time or maintains residual value to a much greater extent than do other depreciable assets such as machinery, computers or other personal property. The National Association of Real Estate Investment Trusts, or NAREIT, defines FFO as net income or loss computed in accordance with GAAP, excluding gains from sales of, and impairment losses recognized with respect to, depreciable property, plus depreciation and amortization, and after adjustments for unconsolidated partnerships and joint ventures. Adjustments for unconsolidated partnerships and joint ventures are calculated on the same basis to determine FFO. We calculate FFO attributable to Aimco common stockholders (diluted) by subtracting if dilutive, redemption or repurchase related preferred stock issuance costs and dividends on preferred stock.stock and amounts allocated from FFO to participating securities.
In addition to FFO, we compute Pro forma FFO and AFFO, which are also non-GAAP financial measures that we believe are helpful to investors in understanding our performance. Pro forma FFO represents FFO attributable to Aimco common stockholders (diluted), excluding preferred equity redemption-related amounts and certain litigation costs. Preferred equity redemption-related amounts (gains or losses) are items that periodically affect our operating results and we exclude these items from our calculation of Pro forma FFO because such amounts are not representative of our operating performance. We are engaged in litigation with Airbnb to protect our property right to select our residents and their neighbors. Due to the unpredictable nature of these cases and associated legal costs, we exclude such costs from Pro forma FFO. In connection with the sale of our Asset Management business, we incurred severance costs during the nine months ended September 30, 2018. We believe these costs incurred are closely related to the sale of the business and exclude such costs from Pro forma FFO. We also excluded from Pro forma FFO the tax benefit due to the valuation allowance release, net of common noncontrolling interests in Aimco Operating Partnership and participating securities. Due to the sale of the Asset Management business, we expect to realize our deferred tax benefits. As a result, we have determined that a valuation allowance is no longer necessary. We excluded the effect of the establishment of the valuation allowance from Pro forma FFO and, as such, have excluded the benefit from its release.
AFFO represents Pro forma FFO reduced by Capital Replacements, which represents our estimation of the actual capital additions made to replace capital assets consumed during our ownership period. When we make capital additions at an apartment community, we evaluate whether the additions extend the useful life of an asset as compared to its condition at the time we purchased the apartment community. We classify as Capital Improvements those capital additions that meet these criteria and we classify as Capital Replacements those that do not. AFFO is a key financial indicator that we use to evaluate our operational performance and measure our current return. AFFO is one of the factors that we use to determine the amounts of our dividend payments.
FFO, Pro forma FFO and AFFO should not be considered alternatives to net income, as determined in accordance with GAAP, as indications of our performance. Although we use these non-GAAP measures for comparability in assessing our performance compared to other REITs, not all REITs compute these same measures, and those who do may not compute them in the same manner. Additionally, our computation of AFFO is subject to our definition of Capital Replacement spending. Accordingly, there can be no assurance that our basis for computing these non-GAAP measures is comparable with that of other REITs.

For the three and nine months ended March 31,September 30, 2018 and 2017, Aimco’s FFO, Pro forma FFO and AFFO are calculated as follows (in thousands):
Three Months Ended March 31,Three Months Ended September 30, Nine Months Ended September 30,
2018 20172018 2017 2018 2017
Net income attributable to Aimco common stockholders (1)$81,525
 $11,491
$567,029
 $17,430
 $651,371
 $44,764
Adjustments:          
Real estate depreciation and amortization, net of noncontrolling partners’ interest90,394
 82,881
94,166
 89,879
 279,798
 257,409
Gain on dispositions and other, net noncontrolling partners’ interest(47,023) (439)(624,521) (5,772) (671,761) (7,952)
Income tax adjustments related to gain on dispositions and other items (2)(30,720) 1,032
54,448
 733
 23,813
 2,175
Common noncontrolling interests in Aimco Operating Partnership’s share of above adjustments(557) (3,850)24,130
 (3,814) 18,963
 (11,447)
Amounts allocable to participating securities(15) (38)626
 (43) 529
 (122)
FFO attributable to Aimco common stockholders – diluted$93,604
 $91,077
$115,878
 $98,413
 $302,713
 $284,827
Litigation costs, net of common noncontrolling interests in Aimco Operating Partnership and participating securities (3)349
 
Tax benefit due to valuation allowance release, net of common noncontrolling interests in Aimco Operating Partnership and participating securities (3)(19,349) 
 (19,349) 
Litigation costs, net of common noncontrolling interests in Aimco Operating Partnership and participating securities (4)2,727
 
 4,633
 
Severance costs, net of common noncontrolling interests in Aimco Operating Partnership and participating securities (5)67
 
 1,282
 
Pro forma FFO attributable to Aimco common stockholders – diluted$93,953
 $91,077
$99,323
 $98,413
 $289,279
 $284,827
Capital Replacements, net of common noncontrolling interests in Aimco Operating Partnership and participating securities(9,767) (10,946)(10,768) (14,446) (32,245) (40,752)
AFFO attributable to Aimco common stockholders – diluted$84,186
 $80,131
$88,555
 $83,967
 $257,034
 $244,075
          
Weighted average common shares outstanding – diluted (FFO, Pro forma FFO and AFFO) (4)156,740
 156,754
Weighted average common shares outstanding – diluted (FFO, Pro forma FFO and AFFO) (6)156,938
 156,835
 156,836
 156,768
          
Net income attributable to Aimco per common share – diluted$0.52
 $0.07
$3.61
 $0.11
 $4.15
 $0.29
FFO / Pro forma FFO per share – diluted$0.60
 $0.58
FFO per share – diluted$0.74
 $0.63
 $1.93
 $1.82
Pro forma FFO per share – diluted$0.63
 $0.63
 $1.84
 $1.82
AFFO per share – diluted$0.54
 $0.51
$0.56
 $0.54
 $1.64
 $1.56
(1)Represents the numerator for calculating Aimco’s earnings per common share in accordance with GAAP.
(2)Income tax adjustmentstaxes related to gain on dispositions and other items for the three months ended March 31,September 30, 2018, includes the reversal of a $33.6$33.3 million deferred tax benefitasset related to an intercompany transfer of assets, related towhich was realized upon the sale of the Asset Management business. We announced in AprilThe remaining income tax provision of $21.1 million relates to the tax on the gain on the sale. For the nine months ended September 30, 2018, the planned sale of this business. Upon completion of the anticipated sale, theincome taxes related taxes will be reflected within our statement of operations withinto gain on dispositions and other items includes tax on the gain on the sale of real estate, inclusivethe Asset Management business, as well as tax on the gain on the sale of related income tax. Accordingly, we have excludedapartment communities during the benefit related to the reorganization from FFO.nine months ended September 30, 2018.
(3)Due to the sale of the Asset Management business, we expect to realize our deferred tax benefits. As a result, we have determined that a valuation allowance is no longer necessary. We excluded the effect of the establishment of the valuation allowance from Pro forma FFO and as such have excluded the benefit from its release.
(4)We are engaged in litigation with Airbnb to protect our property right to select our residents and their neighbors. Due to the unpredictable nature of these cases and associated legal costs, we exclude such costs from Pro forma FFO and AFFO.
(4)(5)In connection with the sale of our Asset Management business, we incurred severance costs of $0.1 million and $1.3 million during the three and nine months ended September 30, 2018, respectively. We believe these costs are closely related to the sale of the business and have excluded such costs from Pro forma FFO and AFFO.
(6)Represents the denominator for Aimco’s earnings per common share – diluted, calculated in accordance with GAAP.
Refer to the Executive Overview for discussion of our Pro forma FFO and AFFO results for 2018 as compared to the same period in 2017.
Refer to the Liquidity and Capital Resources section for further information regarding our capital investing activities, including Capital Replacements.
The Aimco Operating Partnership does not separately compute or report FFO, Pro forma FFO or AFFO. However, based on Aimco’s method for allocation of such amounts to noncontrolling interests in the Aimco Operating Partnership, as well as limited differences between the amounts of net income attributable to Aimco’s common stockholders and the Aimco Operating Partnership’s

unit holders during the periods presented, FFO, Pro forma FFO and AFFO amounts on a per unit basis for the Aimco Operating Partnership would be expected to be substantially the same as the corresponding per share amounts for Aimco.
Leverage Ratios
We target the ratio of Proportionate Debt and Preferred Equity to Adjusted EBITDA to be below 7.0x and we target the ratio of Adjusted EBITDA to Adjusted Interest Expense and Preferred Dividends to be greater than 2.5x. We believe these ratios are important measures as they are commonly used by investors and analysts to assess the relative financial risk associated with balance sheets of companies within the same industry, and they are believed to be similar to measures used by rating agencies to assess entity credit quality.
We calculate Adjusted EBITDA and Adjusted Interest used in our leverage ratios based on the most recent three month amounts, annualized.

Proportionate Debt, as used in our leverage ratios, is a non-GAAP measure and includes our share of the long-term, non-recourse property debt secured by apartment communities in the Real Estate portfolio our term loan, and outstanding borrowings under our revolving credit facility and term loan, reduced by our share of the cash and restricted cash of our consolidated and unconsolidated partnerships owning communities in our Real Estate portfolio, and also by our investment in the subordinate tranches of a securitization trust that holds certain of our property debt, (essentially,which is essentially an investment in our own non-recourse property loans).loans.
In our Proportionate Debt computation, we increase our recorded debt by unamortized debt issue costs because these amounts represent cash expended in earlier periods and do not reduce our contractual obligations, and we reduce our recorded debt by the amounts of cash and restricted cash on-hand (such restricted cash amounts beingwhich are primarily restricted under the terms of our property debt agreements)agreements, assuming these amounts would be used to reduce our outstanding leverage. We further reduce our recorded debt by the value of our investment in a securitization trust that holds certain of our property debt, as our payments of principal and interest associated with such property debt will ultimately repay our investments in the trust.
We exclude from our leverage the non-recourse property debt obligations of consolidated partnerships served by our Asset Management business. The non-recourse property debt obligations of these partnerships are not our obligations and have limited effect on the amount of fees and other payments we expect to receive. Additionally, in April 2018, we announced the planned third quarter 2018 sale of the Asset Management business.
We believe Proportionate Debt is useful to investors as it is a measure of our net exposure to debt obligations. Proportionate Debt, as used in our leverage ratios, is calculated as set forth in the table below.
Preferred Equity, as used in our leverage ratios, represents the redemption amounts for Aimco’s preferred stock and the Aimco Operating Partnership’s preferred OP Units. Preferred Equity, although perpetual in nature, is another component of our overall leverage.
Adjusted EBITDA is a non-GAAP measure. We believe Adjusted EBITDA provides investors relevant and useful information because it allows investors to view income from our operations on an unleveraged basis, before the effects of taxes, depreciation and amortization, gains or losses on sales of and impairment losses related to real estate, and various other items described below. Adjusted EBITDA represents Aimco’s share of the consolidated amount of our net income, adjusted to exclude the effect of the following items for the reasons set forth below:
Adjusted Interest Expense, defined below, to allow investors to compare a measure of our earnings before the effects of our indebtedness with that of other companies in the real estate industry;
preferred dividends, to allow investors to compare a measure of our performance before the effects of our capital structure (including indebtedness) with that of other companies in the real estate industry;
income taxes, to allow investors to measure our performance independent of income taxes, which may vary significantly from other companies within our industry due to leverage and tax planning strategies, among other factors;
depreciation and amortization, gains or losses on dispositions and impairment losses related to real estate, for similar reasons to those set forth in our discussion of FFO, Pro forma FFO and AFFO in the preceding section; and
other items, including gains on dispositions of non-depreciable assets, as these are items that periodically affect our operations but that are not necessarily representative of our ability to service our debt obligations.
While Adjusted EBITDA is a relevant measure of performance and is commonly used in leverage ratios, it does not represent net income as defined by GAAP, and should not be considered as an alternative to net income in evaluating our performance.  Further, our definition and computation of Adjusted EBITDA may not be comparable to similar measures reported by other companies.

Adjusted Interest Expense, as calculated in our leverage ratios, is a non-GAAP measure that we believe is meaningful for investors and analysts as it presents our share of current recurring interest requirements associated with leverage. Adjusted Interest Expense represents our proportionate share of interest expense on non-recourse property debt encumbering apartment communities in the Real Estate portfolio and interest expense on our term loan and revolving credit facility borrowings. We exclude from our calculation of Adjusted Interest Expense:
debt prepayment penalties, which are items that, from time to time, affect our operating results but are not representative of our scheduled interest obligations;
the amortization of debt issue costs, as these amounts have been expended in previous periods and are not representative of our current or prospective debt service requirements; and

the income we receive on our investment in the securitization trust that holds certain of our property debt, as this income is being generated indirectly from interest we pay with respect to property debt held by the trust.
Preferred Dividends represents the preferred dividends paid on Aimco’s preferred stock and the preferred distributions paid on the Aimco Operating Partnership’s preferred OP Units, exclusive of preferred equity redemption related amounts. We add Preferred Dividends to Adjusted Interest Expense for a more complete picture of the interest and dividend requirements of our leverage, inclusive of perpetual preferred equity.
Reconciliations of the most closely related GAAP measures to our calculations of Proportionate Debt, Preferred Equity, Adjusted EBITDA, Adjusted Interest Expense and Preferred Dividends, as used in our leverage ratios, are as follows (in thousands):
 March 31, 2018
Total indebtedness associated with Real Estate portfolio$4,029,343
Adjustments: 
Debt issue costs related to non-recourse property debt18,119
Debt issue costs related to term loan271
Proportionate share adjustments related to debt obligations of consolidated and unconsolidated partnerships(9,556)
Cash and restricted cash(90,893)
Proportionate share adjustments related to cash and restricted cash held by consolidated and unconsolidated partnerships1,182
Securitization trust investment and other(83,587)
Proportionate Debt$3,864,879
  
Preferred stock$125,000
Preferred OP Units101,378
Preferred Equity226,378
Proportionate Debt and Preferred Equity$4,091,257
 Three Months Ended March 31, 2018
Net income attributable to Aimco Common Stockholders$81,525
Adjustments: 
Adjusted Interest Expense39,639
Income tax benefit(37,388)
Depreciation and amortization, net of noncontrolling interest92,630
Gain on disposition and other, inclusive of related income taxes and net of noncontrolling partners’ interests(44,152)
Preferred stock dividends2,148
Net income attributable to noncontrolling interests in Aimco Operating Partnership5,811
Pro forma adjustment (1)1,231
Adjusted EBITDA$141,444
  
Annualized Adjusted EBITDA$565,776
  
(1) Leverage ratios for the three months ended March 31, 2018, have been calculated on a pro forma basis to reflect the acquisition of Bent Tree Apartments and the disposition of three apartment communities during the period as if the transactions had closed on January 1, 2018.
 September 30, 2018
Total indebtedness associated with Real Estate portfolio$3,646,789
Adjustments: 
Debt issue costs related to non-recourse property debt18,488
Proportionate share adjustments related to debt obligations of consolidated and unconsolidated partnerships(9,550)
Cash and restricted cash(104,299)
Proportionate share adjustments related to cash and restricted cash held by consolidated and unconsolidated partnerships2,380
Securitization trust investment and other(87,011)
Proportionate Debt$3,466,797
  
Preferred stock$125,000
Preferred OP Units101,320
Preferred Equity226,320
Proportionate Debt and Preferred Equity$3,693,117

 Three Months Ended March 31, 2018
Interest expense$47,795
Interest expense related to non-recourse property debt obligations of consolidated partnerships served by our Asset Management business(3,286)
Interest expense attributable to Real Estate portfolio44,509
Adjustments: 
Proportionate share adjustments related to interest of consolidated and unconsolidated partnerships(94)
Debt prepayment penalties and other non-interest items(1,482)
Amortization of debt issue costs(1,445)
Interest income earned on securitization trust investment(1,849)
Adjusted Interest Expense$39,639
  
Preferred stock dividends2,148
Preferred OP Unit distributions1,937
Preferred Dividends4,085
Adjusted Interest Expense and Preferred Dividends$43,724
  
Annualized Adjusted Interest Expense$158,556
Annualized Adjusted Interest Expense and Preferred Dividends$174,896
 Three Months Ended September 30, 2018
Net income attributable to Aimco Common Stockholders$567,029
Adjustments: 
Adjusted Interest Expense39,545
Income tax benefit(27,941)
Depreciation and amortization, net of noncontrolling interest96,349
Gain on disposition and other, inclusive of related income taxes and net of noncontrolling partners’ interests(570,384)
Preferred stock dividends2,148
Net income attributable to noncontrolling interests in Aimco Operating Partnership32,946
Pro forma adjustment (1)(6,212)
Adjusted EBITDA$133,480
  
Annualized Adjusted EBITDA$533,920
  
(1) Adjusted EBITDA has been adjusted on a pro forma basis to reflect the dispositions of Chestnut Hill Village, the Asset Management business, and the four Hunters Point communities during the period as if the transactions had been closed on July 1, 2018.
 Three Months Ended September 30, 2018
Interest expense$45,492
Interest expense related to non-recourse property debt obligations of consolidated partnerships served by our Asset Management business(854)
Interest expense attributable to Real Estate portfolio44,638
Adjustments: 
Proportionate share adjustments related to interest of consolidated and unconsolidated partnerships(102)
Debt prepayment penalties and other non-interest items(1,410)
Amortization of debt issue costs(1,658)
Interest income earned on securitization trust investment(1,923)
Adjusted Interest Expense$39,545
  
Preferred stock dividends2,148
Preferred OP Unit distributions1,934
Preferred Dividends4,082
Adjusted Interest Expense and Preferred Dividends$43,627
  
Annualized Adjusted Interest Expense$158,180
Annualized Adjusted Interest Expense and Preferred Dividends$174,508
Liquidity and Capital Resources
Liquidity
Liquidity is the ability to meet present and future financial obligations. Our primary source of liquidity is cash flow from our operations. Additional sources are proceeds from sales of apartment communities, proceeds from refinancings of existing property debt, borrowings under new property debt, borrowings under our Credit Agreement, as defined below, including our revolving credit facility and proceeds from equity offerings.
Our principal uses for liquidity include normal operating activities, payments of principal and interest on outstanding property debt, capital expenditures, dividends paid to stockholders, distributions paid to noncontrolling interest partners and acquisitions of apartment communities. We use our cash and cash equivalents and our cash provided by operating activities to meet short-term liquidity needs. In the event that our cash and cash equivalents and cash provided by operating activities are not sufficient to cover our short-term liquidity needs, we have additional means, such as short-term borrowing availability and proceeds from apartment community sales and refinancings. We may use our revolving credit facility for working capital and other short-term purposes, such as funding investments on an interim basis. We expect to meet our long-term liquidity requirements, such as debt maturities,

redevelopment spending and apartment community acquisitions, through primarily non-recourse, long-term borrowings, (primarily non-recourse), the issuance of equity securities (including OP Units), the sale of apartment communities and cash generated from operations.
As of March 31,September 30, 2018, our primary sources of liquidity were as follows:
$51.958.0 million in cash and cash equivalents;
$39.046.3 million of restricted cash, which consists primarily of escrows related to resident security deposits and reserves and escrows held by lenders for capital additions, property taxes and insurance; and
$509.1592.9 million of available capacity to borrow under our revolving credit facility (which is more fully described below), after consideration of outstanding borrowings of $78.6 million and $12.3$7.1 million of letters of credit backed by the facility.
At March 31,September 30, 2018, we also held unencumbered apartment communities with an estimated fair market value of approximately $2.0$2.3 billion. Each of the amounts presented above exclude amounts attributable to partnerships served by our Asset Management business.

Leverage and Capital Resources
The availability of credit and its related effect on the overall economy may affect our liquidity and future financing activities, both through changes in interest rates and access to financing. Currently, interest rates are low compared to historical levels and many lenders are active in the market. However, any adverse changes in the lending environment could negatively affect our liquidity. We believe we have mitigated much of this exposure by reducing our short and intermediate term maturity risk through refinancing such loans with long-dated, fixed-rate property debt. However, if property financing options become unavailable for our further debt needs, we may consider alternative sources of liquidity, such as reductions in capital spending or proceeds from apartment community dispositions.
Two credit rating agencies rate our creditworthiness and both have rated our credit and outlook as BBB- (stable), an investment grade rating. Our investment grade rating would be useful in accessing capital through the sale of bonds in private or public transactions. However, our intention and historical practice has been to raise debt capital in the form of property-level, non-recourse, long-dated, fixed-rate, amortizing debt, the cost of which is generally less than that of recourse debt and the terms of which also provide for greater balance sheet safety.
As of March 31,September 30, 2018, approximately 87.0%94.2% of our leverage consisted of property-level, non-recourse, long-dated, amortizing debt. Approximately 94.6%96.4% of this property-level debt is fixed-rate, which provides a hedge against increases in interest rates, capitalization rates and inflation. The weighted average maturity of our property-level debt was 7.4 years.
For property-level debt encumbering the communities in our Real Estate portfolio, $35.5 million of ourwas 7.0 years. There are no unpaid principal balances maturematuring during the remainder of 2018, and on average, 12.6%12.2% of our unpaid principal balance will mature each year from 2019 through 2021.
While our primary source of leverage is property-level, non-recourse, long-dated, fixed-rate, amortizing debt, we also have a Senior Secured Credit Agreementcredit facility with a syndicate of financial institutions, which we refer to as our Credit Agreement.institutions. Our Credit Agreementcredit facility provides for $600.0 million of revolving loan commitments. As of March 31,September 30, 2018, we had $78.6 million ofno outstanding borrowings under our revolving loan commitments, representing 1.8% of our total leveragecredit facility. The revolving credit facility . The Credit Agreement provides us with an option to expand the aggregate loan commitments, subject to customary conditions, by up toto $200.0 million.
The Credit Agreementcredit facility also providesprovided for a $250.0 million term loan. The term loan, represents 5.9% of our total leverage as of March 31, 2018, matures on Junewhich we repaid in full during the three months ended September 30, 2018, has a one-year extension option and bears interest at 30-day LIBOR plus 135 basis points.2018.
As of March 31,September 30, 2018, our outstanding perpetual preferred equity represented approximately 5.3%5.8% of our total leverage. Our preferred securities are perpetual in nature; however, for illustrative purposes, we compute the weighted average maturity of our total leverage assuming a 40-year maturity for our preferred securities.
The combination of non-recourse property-level debt, borrowings under our Credit Agreementrevolving credit facility and perpetual preferred equity that comprises our total leverage, reduces our refunding and re-pricing risk. The weighted average maturity for our total leverage described above was 8.78.9 years as of March 31,September 30, 2018.
Under the Credit Agreement,revolving credit facility, we have agreed to maintain a Fixed Charge Coverage ratio of 1.40x, as well as comply with other covenants customary for similar revolving credit arrangements. For the trailing twelve month period ended March 31,September 30, 2018, our Fixed Charge Coverage ratio was 2.02x,2.01x, compared to a ratio of 1.96x1.99x for the trailing twelve month period ended March 31,September 30, 2017. We expect to remain in compliance with this covenant during the next 12 months.

As of June 30, 2018, we had $1.6 billion of property-level debt scheduled to mature between 2019 and 2021 and $125 million of 6.875% preferred stock callable in 2019. During the three months ended September 30, 2018, we repaid $120 million of the property-level debt. We intend to redeem the preferred stock in May 2019. We are addressing the majority of these remaining maturities and have rate-locked $620 million of non-recourse, property loans: $500 million of these loans are fixed rate with a weighted average maturity of nine years and a weighted average interest rate of 4.17%, and $120 million of these loans have five-year terms and interest rates floating at a weighted average of 115 basis points over 30-day LIBOR. In connection with the expected refinancing activity, we expect to incur approximately $14 million of debt extinguishment costs. The completion of the refinancing activity will result in reduced refunding risk, lowered interest expense, an improved ladder of maturities, and an increase in the value of our unencumbered pool to over $3 billion, an almost 70% increase from December 31, 2017.
We like the discipline of financing our investments in real estate through the use of fixed-rate, amortizing, non-recourse property debt, as the amortization gradually reduces our leverage and reduces our refunding risk, and the fixed-rate provides a hedge against increases in interest rates, and the non-recourse feature avoids entity risk.
Changes in Cash, Cash Equivalents and Restricted Cash
The following discussion relates to changes in consolidated cash, cash equivalents and restricted cash due to operating, investing and financing activities, which are presented in our condensed consolidated statements of cash flows included in Item 1 of this report.
Operating Activities
For the threenine months ended March 31,September 30, 2018, net cash provided by operating activities was $81.3$302.9 million. Our operating cash flow is affected primarily by rental rates, occupancy levels and operating expenses related to our portfolio of apartment communities. Cash provided by operating activities for the threenine months ended March 31,September 30, 2018, increased by $7.7$7.8 million compared to 2017, due to improved operating results of our Same Store communities and increased contribution from our redevelopment and lease-up communities, partially offset by lower net operating income associated with apartment communities sold in 2017.

the sale of our Asset Management business.
Investing Activities
For the threenine months ended March 31,September 30, 2018, net cash used inprovided by investing activities of $171.6$239.1 million consisted primarily of the Bent Tree Apartments acquisition and capital expenditures, partially offset by proceeds from the disposition of the Asset Management business, four affordable apartment communities.communities located in the Hunters Point area of San Francisco, and four conventional apartment communities, partially offset by the acquisitions of Bent Tree Apartments and four apartment communities in Philadelphia and capital expenditures. Capital expenditures totaled $75.6$253.1 million and $82.2$266.6 million during the threenine months ended March 31,September 30, 2018 and 2017, respectively. We generally fund capital expenditures with cash provided by operating activities and cash proceeds from apartment community sales.
Further information about the Bent Tree Apartments acquisitionacquisitions and three apartment community salesdispositions completed during the threenine months ended March 31,September 30, 2018, is included in Note 3 to the condensed consolidated financial statements in Item 1.
Capital additions for our Real Estate segment totaled $76.7$241.6 million and $70.1$243.3 million during the threenine months ended March 31,September 30, 2018 and 2017, respectively. We generally fund capital additions with cash provided by operating activities and cash proceeds from sales of apartment communities.
We categorize capital spending for communities in our Real Estate portfolio broadly into six primary categories:
capital replacements, which represent capital additions made to replace the portion of acquired apartment communities consumed during our period of ownership;
capital improvements, which represent capital additions made to replace the portion of acquired apartment communities consumed prior to our period of ownership;
capital enhancements, which may include kitchen and bath remodeling, energy conservation projects and investments in longer-lived materials designed to reduce turnover costs and maintenance, all of which are generally lesser in scope than redevelopment additions and do not significantly disrupt property operations;
redevelopment additions, which represent capital additions intended to enhance the value of the apartment community through the ability to generate higher average rental rates, and may include costs related to entitlement, which enhance the value of a community through increased density, and costs related to renovation of exteriors, common areas or apartment homes;

development additions, which represent construction and related capitalized costs associated with development of apartment communities; and
casualty capital additions, which represent construction and related capitalized costs incurred in connection with the restoration of an apartment community after a casualty event such as a severe snow storm, hurricane, tornado, flood or fire.
We exclude from these measures the amounts of capital spending related to apartment communities sold or classified as held for sale at the end of the period as well as amounts expended by consolidated partnerships served by our Asset Management business as such amounts generally do not affect the amount of cash flow we expect to receive from the operation and ultimate disposition of these communities.foregoing measures. We have also excluded from these measures indirect capitalized costs, which are not yet allocated later in the year to apartment communities with capital additions, and their related capital spending categories.

A summary of the capital spending for these categories, along with a reconciliation of the total for these categories to the capital expenditures reported in the accompanying condensed consolidated statements of cash flows for the threenine months ended March 31,September 30, 2018 and 2017, are presented below (in thousands):
Three Months Ended March 31,Nine Months Ended September 30,
2018 20172018 2017
Real Estate      
Capital replacements$6,727
 $8,455
$24,222
 $29,607
Capital improvements1,824
 2,918
9,086
 11,857
Capital enhancements19,146
 17,068
78,516
 75,569
Redevelopment additions41,049
 38,981
94,568
 114,165
Development additions5,720
 1,390
30,229
 5,783
Casualty capital additions2,253
 1,303
4,992
 6,284
Real Estate capital additions76,719
 70,115
241,613
 243,265
Plus: additions related to apartment communities sold or held for sale and unallocated indirect capitalized costs1,488
 3,331
13,470
 17,678
Plus: additions related to consolidated asset managed communities1,693
 814

 814
Consolidated capital additions79,900
 74,260
255,083
 261,757
Plus: net change in accrued capital spending(4,299) 7,891
(1,934) 4,866
Capital expenditures per condensed consolidated statement of cash flows$75,601
 $82,151
$253,149
 $266,623
For the threenine months ended March 31,September 30, 2018 and 2017, we capitalized $2.0$5.7 million and $1.6$5.9 million of interest costs, respectively, and $8.9$26.8 million and $8.5$26.8 million of other direct and indirect costs, respectively.
We invested $19.1$78.5 million in capital enhancements during the threenine months ended March 31,September 30, 2018, and we anticipate a full year investment ranging from $80$90 million to $100 million.
Redevelopment and Development
We execute redevelopments using a range of approaches. We prefer to limit risk by executing redevelopments using a phased approach, in which we renovate an apartment community in stages. Smaller phases provide us the flexibility to maintain current earnings while aligning the timing of the completed apartment homes with market demand. The following table summarizes value-creating investments related toongoing redevelopments of this nature at March 31,September 30, 2018 (dollars in millions):
Location Apartment Homes Approved for Redevelopment Estimated/Potential Net Investment Inception-to-Date Net InvestmentLocation Apartment Homes Approved for Redevelopment Estimated/Potential Net Investment Inception-to-Date Net Investment
Bay ParcMiami, FL 15
 $20.0
 $19.4
Miami, FL 60
 $24.1
 $19.7
Calhoun Beach ClubMinneapolis, MN 275
 28.7
 10.3
Minneapolis, MN 275
 28.7
 10.5
Flamingo South BeachMiami, FL 
 9.7
 8.0
Miami Beach, FL 
 39.7
 12.0
Palazzo West at The GroveLos Angeles, CA 389
 24.5
 17.0
Los Angeles, CA 389
 24.5
 18.7
Saybrook Pointe San Jose, CA 324
 18.3
 15.6
San Jose, CA 324
 18.8
 18.6
YorktownLombard, IL 292
 25.7
 18.8
Lombard, IL 292
 25.7
 19.9
OtherVarious 92
 12.9
 4.4
Various 92
 12.9
 11.6
Total 1,387
 $139.8
 $93.5
 1,432
 $174.4
 $111.0

We also undertake ground-up development when warranted by risk-adjusted investment returns, either directly or in connection with the redevelopment of an existing apartment community or, on a more limited basis, at a new location.community. When smaller redevelopment phases are not possible, we may engage in redevelopment activities where an entire building or community is vacated. The following table summarizes our value-creating investments related to these developments and redevelopments at March 31,September 30, 2018 (dollars in millions):
Location Apartment Homes Approved for Redevelopment or Development Estimated/Potential Net Investment Inception-to-Date Net Investment Stabilized Occupancy NOI StabilizationLocation Apartment Homes Approved for Redevelopment or Development Estimated/Potential Net Investment Inception-to-Date Net Investment Stabilized Occupancy NOI Stabilization
Anschutz ExpansionAurora, CO 253
 $87.0
 $4.1
  3Q 2021  4Q 2022
Parc Mosaic Boulder, CO 226
 $117.0
 $30.0
  4Q 2020  1Q 2022 Boulder, CO 226
 117.0
 51.2
  4Q 2020  1Q 2022
Park Towne Place Philadelphia, PA 942
 176.0
 155.5
  1Q 2019  2Q 2020 Philadelphia, PA 940
 176.0
 172.3
  1Q 2019  2Q 2020
Total 1,168
 $293.0
 $185.5
  1,419
 $380.0
 $227.6
 
Net investment represents the total actual or estimated investment, net of tax and other credits earned as a direct result of our redevelopment or development of the community. For phased redevelopments, potential net investment relates to the current phase of the redevelopment.
Stabilized Occupancy represents the period in which we expect to achieve stabilized occupancy, generally greater than 90%.
NOI Stabilization represents the period in which we expect the communities to achieve stabilized rents and operating costs, generally five quarters after occupancy stabilization.
During the three months ended March 31, 2018, we invested $46.8 million in redevelopment and development. In Center City, Philadelphia, we continued construction on the fourth and final tower of Park Towne Place. Initial move-ins have occurred and at the end of April, 31% of the tower was pre-leased.
Construction is underway, on plan and on budget at Parc Mosaic, our $117.0 million, 226 apartment home community being developed on the site of our former Eastpointe community in Boulder, Colorado. We expect Parc Mosaic will be available for occupancy in the summer of 2019.
Our total estimated or potential net investment in redevelopment and development is $432.8$554.4 million with a projected weighted average net operating income yield on these investments of 6.1%, assuming untrended rents. Of this total, $279.0$338.6 million has been funded. We expect to fund the remaining redevelopment and development investment withthrough a combination of leverage and proceeds from our planned salecommunity sales.
During the nine months ended September 30, 2018, we invested $124.8 million in redevelopment and development. In Center City, Philadelphia, we have substantially completed redevelopment of the Asset Management businessvacated fourth and Hunters Point communities.
final tower of Park Towne Place. During the three months ended March 31,September 30, 2018, average daily occupancy at the three completed towers was 89.1%. As of September 30, 2018, the three completed towers were 95% leased and the fourth tower was 71% leased.
We also commenced the next phase of redevelopment at our Flamingo community, located in Miami Beach. This $30 million phase includes extensive redevelopment of retail, leasing, and common areas, including major enhancements to the entryway.
During the nine months ended September 30, 2018, we exercised our option to acquire approximately two acres of land adjacent to our 21 Fitzsimons apartment community, located on the University of Colorado Anschutz Medical Campus, and broke ground on the development of a 253-apartment home community. We expect to invest approximately $87 million to construct the community, which is expected to be complete in the third quarter of 2020.
During the nine months ended September 30, 2018, we leased 59329 apartment homes at our redevelopment communities. As of March 31,September 30, 2018, our exposure to lease-up at active redevelopment and development projectscommunities was approximately 527341 apartment homes, of which 20162 were in the fourth tower of Park Towne Place, and 215213 were being constructed at Parc Mosaic.Mosaic, and 66 were located in three other communities.
We expect our total development and redevelopment spending to range from $120$170 million to $200$190 million for the year ending December 31, 2018.
Financing Activities
For the threenine months ended March 31,September 30, 2018, net cash provided byused in financing activities of $86.8$580.3 million was primarily attributed to proceeds fromrepayments on non-recourse property debt, the pay down of the term loan and net borrowings on our revolving credit facility, partially offset by dividends paid to common security holders, distributions paid to noncontrolling interests, and principal payments onredemptions of noncontrolling interest, partially offset by proceeds from non-recourse property loans.debt.
Net borrowings on our revolving credit facility primarily relate to the timing of apartment community acquisitions and dispositions and of property debt financing activities.
Proceeds from non-recourse property debt borrowings during the period consisted of the closing of two fixed-rate, amortizing, non-recourse property loans totaling $242.0 million. These loans have 10-year terms and a weighted average interest rate of 3.48%,

126 basis points more than the corresponding Treasury rate at the time of pricing. The net effect of 2018 fixed-rate property debt refinancing activities has been to lower our weighted average fixed interest rate by nearly 1016 basis points since December 31, 2017, to 4.55%4.48%, reducing prospective interest expense by more than $3.0$5.7 million.
Proceeds from non-recourse property debt borrowing during the period also included the closing of two non-recourse, variable-rate property loans totaling $118.6 million. These loans each have a five-year5-year term and bear interest at 30-day LIBOR plus 1.25%.

The five-year terms fill a hole in our laddered maturities and, taken together with the planned repayment of the variable term loan, reduce our exposure to increasing short-term interest rates to less than 7%approximately 3% of our leverage.
We like the discipline of financing our investments in real estate through the use of fixed-rate, amortizing, non-recourse property debt, as the amortization gradually reduces our leverage and reduces our refunding risk, and the fixed-rate provides a hedge against increases in interest rates, and the non-recourse feature avoids entity risk.
Principal payments on property loans during the period totaled $206.3$403.1 million, consisting of scheduled principal amortization of $20.4$63.0 million and repayments of $185.9$340.1 million.
Net cash used in financing activities also includes $73.7$207.9 million of payments to equity holders, as further detailed in the table below.
Equity and Partners’ Capital Transactions
The following table presents the Aimco Operating Partnership’s distribution activity (including distributions paid to Aimco) during the threenine months ended March 31,September 30, 2018 (in thousands):
Cash distributions paid by the Aimco Operating Partnership to holders of noncontrolling interests in consolidated real estate partnerships$7,228
Cash distributions paid to holders of noncontrolling interests in consolidated real estate partnerships$7,934
Cash distributions paid by the Aimco Operating Partnership to preferred unitholders (1)4,085
12,250
Cash distributions paid by the Aimco Operating Partnership to common unitholders (2)62,389
187,747
Total cash distributions paid by the Aimco Operating Partnership$73,702
$207,931
(1)$2.26.4 million represented distributions to Aimco, and $1.9$5.8 million represented distributions paid to holders of OP Units.
(2)$59.7178.9 million represented distributions to Aimco, and $2.7$8.8 million represented distributions paid to holders of OP Units.
The following table presents Aimco’s dividend activity during the threenine months ended March 31,September 30, 2018 (in thousands):
Cash distributions paid by Aimco to holders of noncontrolling interests in consolidated real estate partnerships$7,228
Cash distributions paid by Aimco to holders of OP Units4,674
Cash distributions paid to holders of noncontrolling interests in consolidated real estate partnerships$7,934
Cash distributions paid to holders of OP Units14,615
Cash dividends paid by Aimco to preferred stockholders2,148
6,445
Cash dividends paid by Aimco to common stockholders59,652
178,937
Total cash dividends and distributions paid by Aimco$73,702
$207,931
During the nine months ended September 30, 2018, we repurchased $8.5 million of OP Units at an average discount of approximately 20% to our estimated net asset value per share.
Future Capital Needs
We expect to fund any future acquisitions, redevelopment, development, and other capital spending principally with proceeds from apartment community sales, short-term borrowings, debt and equity financing and operating cash flows. Our near term business plan does not contemplate the issuance of equity.

ITEM 3.Quantitative and Qualitative Disclosures About Market Risk
As of March 31,September 30, 2018, on a consolidated basis, we had approximately $201.3$133.1 million of variable-rate property debt outstanding, and $328.6 million of variable-rateno borrowings under our Credit Agreement, including a $250.0 million term loan that matures on June 30, 2018 and has a one-year extension option.revolving credit facility. We estimate that a change in 30-day LIBOR of 100 basis points with constant credit risk spreads would reduce or increase net income attributable to Aimco common stockholders and the Aimco Operating Partnership’s common unitholders by approximately $5.1$1.3 million on an annual basis.
At March 31,September 30, 2018, our Real Estate segment had approximately $90.9$104.3 million in cash and cash equivalents and restricted cash, a portion of which bears interest at variable rates, which may offset somewhat a change in rates on our variable-rate debt discussed above.
We estimate the fair value for debt instruments as described in Note 6 to the condensed consolidated financial statements in Item 1. The estimated fair value of total indebtedness associated with the Real Estate portfolio approximated its carrying valuewas approximately $3.6 billion at MarchSeptember 30, 2018, inclusive of a $64.0 million mark-to-market asset. The mark-to-market liability at December 31, 2018.2017 was $55.1 million.
If market rates for consolidated fixed-rate debt in our Real Estate segment were higher by 100 basis points with constant credit risk spreads, the estimated fair value of consolidated debt discussed above would decrease from $4.0$3.6 billion in the aggregate to $3.9$3.5 billion. If market rates for consolidated debt discussed above were lower by 100 basis points with constant credit risk spreads, the estimated fair value of consolidated fixed-rate debt would increase from $4.0$3.6 billion in the aggregate to $4.1$3.7 billion.
ITEM 4.Controls and Procedures
Aimco
Disclosure Controls and Procedures
Aimco’s management, with the participation of Aimco’s chief executive officer and chief financial officer, has evaluated the effectiveness of Aimco’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this report. Based on such evaluation, Aimco’s chief executive officer and chief financial officer have concluded that, as of the end of such period, Aimco’s disclosure controls and procedures are effective.
Changes in Internal Control Over Financial Reporting
There has been no change in Aimco’s internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the firstthird quarter of 2018 that has materially affected, or is reasonably likely to materially affect, Aimco’s internal control over financial reporting.
The Aimco Operating Partnership
Disclosure Controls and Procedures
The Aimco Operating Partnership’s management, with the participation of the chief executive officer and chief financial officer of both Aimco and AIMCO-GP, Inc., the Aimco Operating Partnership’s general partner, has evaluated the effectiveness of the Aimco Operating Partnership’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange) as of the end of the period covered by this report. Based on such evaluation, the chief executive officer and chief financial officer of AIMCO-GP, Inc. have concluded that, as of the end of such period, the Aimco Operating Partnership’s disclosure controls and procedures are effective.
Changes in Internal Control Over Financial Reporting
There has been no change in the Aimco Operating Partnership’s internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the firstthird quarter of 2018 that has materially affected, or is reasonably likely to materially affect, the Aimco Operating Partnership’s internal control over financial reporting.

PART II. OTHER INFORMATION
ITEM 1A.Risk Factors
As of the date of this report, there have been no material changes from the risk factors in Aimco’s and the Aimco Operating Partnership’s combined Annual Report on Form 10-K for the year ended December 31, 2017.
ITEM 2.Unregistered Sales of Equity Securities and Use of Proceeds
Aimco
(a) Unregistered Sales of Equity Securities. Aimco did not issue any unregistered shares of Common Stock during the three months ended March 31,September 30, 2018.
(c) Repurchases of Equity Securities. There were no repurchases by Aimco of its common equity securities during the three months ended March 31,September 30, 2018. Aimco’s Board of Directors has, from time to time, authorized Aimco to repurchase shares of its outstanding capital stock. As of March 31,September 30, 2018, Aimco was authorized to repurchase approximately 19.3 million additional shares. This authorization has no expiration date. These repurchases may be made from time to time in the open market or in privately negotiated transactions.
The Aimco Operating Partnership
(a) Unregistered Sales of Equity Securities. The Aimco Operating Partnership did not issue any unregistered OP Units during the three months ended March 31,September 30, 2018.
(c) Repurchases of Equity Securities. The Aimco Operating Partnership’s Partnership Agreement generally provides that after holding the common OP Units for one year, limited partners have the right to redeem their common OP Units for cash, subject to the Aimco Operating Partnership’s prior right to cause Aimco to acquire some or all of the common OP Units tendered for redemption in exchange for shares of Common Stock. Common OP Units redeemed for Common Stock are exchanged on a one-for-one basis (subject to antidilution adjustments). During the three months ended March 31,September 30, 2018, no common OP Units were redeemed in exchange for shares of Common Stock. The following table summarizes repurchases, (redemptionsor redemptions in exchange for cash)cash, of the Aimco Operating Partnership’s equity securities for the three months ended March 31,September 30, 2018.




Period
Total
Number
of Units
Purchased
 
Average
Price
Paid
per Unit
 
Total Number of
Units Purchased
as Part of
Publicly
Announced
Plans or
Programs (1)
 
Maximum Number
of Units that
May Yet Be
Purchased Under the Plans or Programs (1)
January 1 - January 31, 2018145,596
 $43.38
 N/A N/A
February 1 - February 28, 2018378
 41.26
 N/A N/A
March 1 - March 31, 201816,111
 39.22
 N/A N/A
Total162,085
 $42.96
    




Period
Total
Number
of Units
Purchased
 
Average
Price
Paid
per Unit
 
Total Number of
Units Purchased
as Part of
Publicly
Announced
Plans or
Programs (1)
 
Maximum Number
of Units that
May Yet Be
Purchased Under the Plans or Programs (1)
July 1 - July 31, 20185,466
 $41.50
 N/A N/A
August 1 - August 31, 20186,094
 42.69
 N/A N/A
September 1 - September 30, 20188,245
 43.59
 N/A N/A
Total19,805
 $42.74
    
(1)The terms of the Aimco Operating Partnership’s Partnership Agreement do not provide for a maximum number of units that may be repurchased, and other than the express terms of its Partnership Agreement, the Aimco Operating Partnership has no publicly announced plans or programs of repurchase. However, for Aimco to repurchase shares of its Common Stock, the Aimco Operating Partnership must make a concurrent repurchase of its common partnership units held by Aimco at a price per unit that is equal to the price per share Aimco pays for its Common Stock.
Aimco and the Aimco Operating Partnership
Dividend and Distribution Payments. Our Credit Agreementrevolving credit facility includes customary covenants, including a restriction on dividends and distributions and other restricted payments, but permits dividends and distributions during any 12-month period in an aggregate amount of up to 95% of Aimco’s Funds From Operations, subject to certain non-cash adjustments, for such period or such amount as may be necessary for Aimco to maintain its REIT status.

ITEM 6.Exhibits
The following exhibits are filed with this report:
EXHIBIT NO. (1)DESCRIPTION
  Charter
  Amended and Restated Bylaws (Exhibit 3.1 to Aimco’s Current Report on Form 8-K dated January 26, 2016, is incorporated herein by this reference)
  Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of July 29, 1994, as amended and restated as of February 28, 2007 (Exhibit 10.1 to Aimco’s Annual Report on Form 10-K for the year ended December 31, 2006, is incorporated herein by this reference)
  First Amendment to Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of December 31, 2007 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated December 31, 2007, is incorporated herein by this reference)
  Second Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of July 30, 2009 (Exhibit 10.1 to Aimco’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2009, is incorporated herein by this reference)
  Third Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of September 2, 2010 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated September 3, 2010, is incorporated herein by this reference)
  Fourth Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of July 26, 2011 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated July 26, 2011, is incorporated herein by this reference)
  Fifth Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of August 24, 2011 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated August 24, 2011, is incorporated herein by this reference)
  Sixth Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of December 31, 2011 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated December 31, 2011, is incorporated herein by this reference)
  Seventh Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of May 13, 2014 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated May 13, 2014, is incorporated herein by this reference)
  Eighth Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of October 31, 2014 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated November 4, 2014, is incorporated herein by this reference)
  Ninth Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of August 16, 2016 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated August 16, 2016, is incorporated herein by this reference)
  Tenth Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of January 31, 2017 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated January 31, 2017, is incorporated herein by this reference)
  Second Amended and Restated Senior Secured Credit Agreement, dated as of June 30, 2017, among Aimco, the Aimco Operating Partnership, AIMCO/Bethesda Holdings, Inc., the lenders party thereto and KeyBank N. A., as administrative agent, swing line lender and letter of credit issuer. (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated June 30, 2017, is incorporated herein by this reference)
  Aimco Executive Severance Policy (Exhibit 10.1 to Aimco’s Current Report on Form 8-K dated February 22, 2018, is incorporated herein by this reference)*
  Aimco Second Amended and Restated 2015 Stock Award and Incentive Plan (as amended and restated effective February 22, 2018) (Exhibit A to Aimco’s Proxy Statement on Schedule 14A filed with the Securities and Exchange Commission on March 8, 2018 is incorporated herein by this reference)*
  Form of Performance Vesting LTIP II Unit Agreement (2015 Stock Award and Incentive Plan) (Exhibit 10.15 to Aimco’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2018, is incorporated herein by this reference)*
  Certification of Chief Executive Officer pursuant to Securities Exchange Act Rules 13a-14(a)/15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 – Aimco
  Certification of Chief Financial Officer pursuant to Securities Exchange Act Rules 13a-14(a)/15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 – Aimco
  Certification of Chief Executive Officer pursuant to Securities Exchange Act Rules 13a-14(a)/15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 – the Aimco Operating Partnership
  Certification of Chief Financial Officer pursuant to Securities Exchange Act Rules 13a-14(a)/15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 – the Aimco Operating Partnership


EXHIBIT NO. (1)DESCRIPTION
  Certifications of Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 – Aimco
  Certifications of Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 – the Aimco Operating Partnership
  Agreement Regarding Disclosure of Long-Term Debt Instruments – Aimco
  Agreement Regarding Disclosure of Long-Term Debt Instruments – the Aimco Operating Partnership
101  XBRL (Extensible Business Reporting Language). The following materials from Aimco’s and the Aimco Operating Partnership’s combined Quarterly Report on Form 10-Q for the quarterly period ended March 31,September 30, 2018, tagged in XBRL: (i) condensed consolidated balance sheets; (ii) condensed consolidated statements of operations; (iii) condensed consolidated statements of comprehensive income; (iv) condensed consolidated statements of cash flows; and (v) notes to condensed consolidated financial statements.
    
(1)Schedules and supplemental materials to the exhibits have been omitted but will be provided to the Securities and Exchange Commission upon request.
*Management contract or compensatory plan or arrangement


SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

 
APARTMENT INVESTMENT AND
MANAGEMENT COMPANY
 
By:/s/ PAUL BELDIN
 Paul Beldin
 
Executive Vice President and Chief Financial
Officer
 (duly authorized officer and
 principal financial officer)
 
By:/s/ ANDREW HIGDON
Andrew Higdon
Senior Vice President and
Chief Accounting Officer

 AIMCO PROPERTIES, L.P.
 
By:AIMCO-GP, Inc., its general partner
 
By:/s/ PAUL BELDIN
 Paul Beldin
 
Executive Vice President and Chief Financial
Officer
 (duly authorized officer and
 principal financial officer)
 
By:/s/ ANDREW HIGDON
 Andrew Higdon
Senior Vice President and
Chief Accounting Officer

Date: May 8,November 2, 2018


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